Solutions

Key Questions

• Why do solutions become saturated?

  Answer:

  Why? Because there is usually a specific and measurable equilibrium between dissolved solute and undissolved solute at a given temperature.

  Explanation:

  Saturation defines an equilibrium condition: the rate of solute dissolution is equal to the rate of solute precipitation; alternatively, the rate of going up into solution is equal to the rate of coming out of solution.

  #"undissolved solute "rightleftharpoons" dissolved solute"#

  This saturation depends on temperature, the properties of the solvent, and the nature (the solubility of) the solute. A hot solution can normally hold more solute than a cold one. If this equilibrium condition is not reached, in the case of unsaturation, the solvent can dissolve more solute, but in the case of supersaturation, the solvent holds MORE solute than would be in equilibrium with undissolved solute.

  anor277 · 4 · Sep 28 2015

• How are solution, solute, and solvent related?
• Why do solutions become saturated?
• How does temperature affect solutions?
• How does a solution differ from a colloid?
• Calculate the amount of 1 M NaOH aqueous solution needed to make 100 mL of 0.5 M NaOH aqueous solution.
• How does buffering a solution change the solutions behavior?
• How does Benedict's solution change colour?
• Describe how would you prepare 1 L of a 1 M solution of sodium chloride. The gram formula weight of sodium chloride is 58.44 g/mol.
• How do solutions differ from suspensions?
• How does a solution differ from a compound?
• How can solutions be different?
• How can a solute be separated from a solvent?
• Explain the use of preparing standard solutions and titrations?
• How can a solvent dissolve a solute?
• What are some examples of a solute?
• Question #f3ede
• Question #11d6b
• Question #1c0d4
• Question #4ede0
• Question #0e130
• Question #e3565
• Question #f52da
• Question #57f2d
• Question #48f56
• Are all homogeneous mixtures also solutions?
• Determine the mean activity coefficient and mean activity of a #"0.004 molal"# of #"Ba"("HCO"_3)_2#?
• Question #376a3
• Question #0b26b
• Question #9dd74
• #20*g# of #KOH# are dissolved in #20*g# of water. What are the solute and solvent in this scenario?
• I want to make 1oz solution from these ingredients: Alcohol 55.0 % Distilled water 44.0% Salt ( sodium Chloride) 1.0%. Please let me know with explanation Thank you so much. ?
• Question #2e157
• What is the difference between a colloid, and a solution?
• What is the charge on a #"surfactant"#?
• How can you can tell the difference between a solution and a clear colloid?
• How many grams of nitric acid are present in 250.0 mL of 6.70 M acid solution?
• How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M solution?
• When sodium chloride, #NaCl#, is dissolved in water, the sodium and chloride ions move apart from one another. Why doesn't the sodium then react explosively with the water, like solid sodium metal does?
• When nail polish is dissolved in acetone, which substance is the solute, and which is the solvent?
• What will occur when a saturated solution of a solute is cooled, if the solute does not crystallise?
• What is the solute in a solution of calcium chloride (#CaCl_2#) and water?
• Is hyponitrite polar or nonpolar?
• If you let a drop of honey dissolve in a glass of warm water, what is the solvent and solute for the resulting solution?
• When sugar is added to water, the sugar dissolves and the resulting liquid is clear. Do the sugar and water form a pure substance, or do they form a mixture?
• In a Lewis diagram, how do I know which one to put into the middle? Please give a detailed explanation! Thanks so much!
• In a 56.0 g aqueous solution of methanol, #CH_4O#, the mole fraction of methanol is .270. What is the mass of each component?
• How many liters of a 30% alcohol solution must be mixed with 20 liters of a 80% solution to get a 70% solution?
• What mass of sodium dichromate is required to prepare a #250*mL# volume of #0.050*mol*L^-1# concentration with respect to dichromate?
• How are pH and pOH related?
• Why does pH + pOH = 14?
• How do you find pOH from pH?
• What are the pH and pOH scales?
• How to you convert between pH, pOH, [H+] and [OH-]?
• How do you calculate pOH?
• How do you find the pH, the pOH, [H3O+], and [OH-] in equations?
• What is the equation to find pH and pOH?
• If Kb for #NX_3# is #7.5x10^-6# , what is the pOH of a .175 M aqueous solution of NX3?
• What is the pH of a 0.0001 M solution of HNO3? pOH?
• What is the [H+] concentration if the pOH is 7.08?
• If pH + pOH=14, what is the pOH of the lemon juice?
• If the pH of a solution is 6.2, what would the pOH be?
• If the pH of a solution is 10.7, what would the pOH be?
• A solution is prepared to be 0.1475 M in Sr(OH)2. How do you find the [H3O+], [OH‐], pH, and pOH?
• How do you find pOH if [H+] is given?
• How do you get pH and pOH given pka or pkb?
• What is pOH and how does it relate to pH?
• How is pOH determined?
• Why is it important to determine a solutions pOH?
• Why is pOH important?
• How do you calculate pOH of NaOH?
• How do you calculate the pOH of HCl?
• How do you find pOH given pH?
• How do you find pOH from OH?
• How do you change pOH to pH?
• What is pOH used for?
• What does pOH stand for?
• What does pOH mean?
• What is pH in chemistry?
• Are pH and pOH related to each other?
• How do you calculate the pOH of a solution?
• Why is milk a colloid?
• What are examples of colloids?
• What is the difference between a colloid and a solution?
• What are solutions, colloids, and suspensions?
• What is the difference between a colloid and a suspension?
• A student was given liquid and told that it contained a mixture. How could the student determine whether or not the mixture was a solution, suspension, or colloid?
• What is the difference between colloids, suspension and true solution?
• How are a colloid and a suspension alike and different?
• How do colloids size up?
• How do you separate colloids?
• Question #055e9
• What do solutes dissolved in solvents create?
• In a solution of brine (salt water), what is the salt?
• What is the overall effect of adding a solute to a solution?
• Question #a8e15
• How many phases are present in a colloid?
• What is a suspension?
• What does the suspension mean in medicine?
• Is a suspension a homogeneous or a heterogeneous mixture? What about a colloid?
• What does homogeneous suspension mean?
• What are the characteristics of a suspension?
• What is a suspension medication?
• How can a suspension be separated?
• How can you identify a suspension?
• How do suspensions differ from solutions?
• How does a suspension differ from solution?
• What are some examples of a suspension?
• What are some examples of colloids and suspensions?
• What is a suspension in chemistry?
• Are these a colloid, suspension, or solution?
• What are the differences between a solute/solvent and solution/suspension?
• What are suspensions and emulsions, in science?
• How do you calculate the pH of the solution made by adding 0.50 mol of #HOBr# and 0.30 mol of #KOBr# to 1.00 L of water?
• What are some examples of gas solutions?
• Question #83d96
• In a solution if substance A makes up 1%, substance B makes up 9%, substance C makes up 20% and substance D makes up 70%, which substance would generally function as the solvent?
• Which term defines the following: moles of solute + mass of solvent in kg?
• How many grams of NaOH are needed to prepare 250 mL of 0.205 M NaOH?
• Is it safe to use a 0.50% (m/v) #MgCl_2# solution in an IV? If not, how do you calculate the concentration (m/v%) that would be safe?
• What effect does a solute have on the freezing and boiling points of the solution?
• 5. Ethanol has the formula #C_2H_6O#. Acetic acid has a similar formula of #C_2H_4O_2#. If there was a difference in your results for electrical conductivity of aqueous solutions for these compounds, how could this be explained?
• How many grams of a 17.8% sugar solution contain 68.0 g of sugar?
• What are substances that dissolve in water to form solutions that conduct electricity called?
• How do you determine if a pair of aqueous solutions will produce a precipitate when mixed?
• How would you prepare 1.0 L of a o.500 M solution of potassium chloride?
• A doctor's order is 0.125g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?
• One thousand grams of seawater would consist of how many grams of dissolved substances?
• Question #1c559
• What mass of solution containing 6.50% sodium sulfate, by mass contains 1.50 g sodium sulfate?
• Question #242b5
• How would you identify the solute and solvent in this solution:. table sugar (#C_12H_22O_11#) in water?
• What is the correct way to show sodium chloride in aqueous solution?
• How many moles of #ZnCl# are in 100 mL of 0.300 M solution?
• How many mL of a .10 M #NaOH# solution are needed to neutralize 15 mL of .20 M #H_3PO_4# solution?
• How many grams of NaOH are needed to prepare 800 mL Of 0.8 M solution (Mw NaOH = 40.00 g / mole) ?
• What mass of #Mg(OH)_2# is produced when 100 mL of 0.42 M #Mg(NO_3)_2# is added to excess #NaOH# solution?
• What is the volume in milliliters of a 5.01 M silver nitrate solution that contains 275. mmol of silver nitrate?
• A solution contains 180 g of glucose and 162 g of water. What is the mole fraction of glucose?
• What volume of a 2.5 M stock solution of acetic acid is required to prepare 100.0 milliliters of a .50 M acetic acid solution?
• If #[H_3O^+]=7.5xx10^-3*mol*L^-1#, what is #pH#?
• What relationship exists between concentration of solution and its density? How would you explain such relationship?
• Given the following, is there more water in the juice or more juice in the water?
• What is the molarity of a solution formed by mixing 10.0 g of #H_2SO_4# with enough water to make 0.100 L of solution?
• What is a solution that causes water to move out of a cell?
• How would you make 1 liter of a solution of 1.0 NaCl?
• Why does NaCl dissolve in water?
• What are soluble inorganic compounds whose solutions will conduct an electric current.?
• How can a solution of potassium phosphate be distinguished chemically from a potassium sulfate solution?
• Why must the silver nitrate test for chloride ions be done in an acidified solution?
• How many milliliters of 11.5 M HCl(aq) are needed to prepare 305.0 mL of 1.00 M HCl(aq)?
• How would you calculate the surface tension of a 2% (w/v) solution of a wetting agent that has a density of 1.008 g/mL and that rises 6.6 cm in a capillary tube having an inside radius of 0.2 mm?
• What is a solution that has more positive hydrogen ions than negative hydroxide ions?
• What is a solution considered when it has an equal number of hydrogen and hydroxide ions?
• Can you describe the differences between solutions, suspensions, and emulsions?
• A nurse wants to add water to 30 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add?
• What happens when table salt (NaCl) is added to water?
• The mass of the ocean is about #1.8 x 10^21 kg#. If the ocean contains 1.076% by mass sodium ions, #Na^+#, what is the mass in kilograms of #Na^+# in the ocean?
• How much water must be evaporated from 60 kilograms of a 15 salt solution in order to obtain a 40% solution?
• Inside of a cell suppose there is 2% salt and 98% water. The cell is in a solution containing 1% salt and 99% water. Is the cell hypotonic, hypertonic or isotonic compared to its surroundings?
• What is the relationship among solutions, solutes, and solvents?
• What is a compound that produces hydrogen ions in a solution?
• Question #28e83
• What scale indicates the relative concentrations of hydrogen and hydroxide ions in a solution?
• What is the pH of an aqueous solution if the [#H^+#]=0.000001?
• What is a compound that produces hydrogen ions in solution?
• If the concentration of solute molecules outside a cell is lower than the concentration in the cytosol, is the external solution hypotonic, hypertonic, or isotonic to the cytosol?
• Are there solutes that are insoluble in water?
• How do I prepare a solution that is #"2.0 g/L"# of #"NaCl"# in water if I have #"2.000 g"# of #"NaCl"#?
• Question #da85c
• Find the percent #"P"_2"O"_5# by mass in the fertilizer?
• Question #bb39f
• Can anyone please define what are Polar and Non polar solvents?
• In a certain acidic solution at 25 degrees Celsius, [H+] is 100 times greater than [OH-]. What is the value for [OH-] for the solution ?
• What is a solution with a high concentration of hydrogen ions?
• If you used 59.2mL of a 10% bleaching solution how much non-diluted bleach did you use?
• What are the key features of a water solution?
• If #[HO^-]=6.0xx10^-10*mol*L^-1#, what is #pH# for this solution?
• What is the relationship between water temperature and dissolved oxygen in the water?
• How much lead can be extracted from 254.3 g of lead (IV) oxide?
• How many grams of #NaNO_3# will dissolve in 50 mL of water at 10°C?
• How many grams of #H_3PO_4# are in 521 mL of a 9.30 M solution of #H_3PO_4#?
• If 200 mL of a 2.50 M #NaOH# solution is diluted to 500 mL, what is the new concentration of NaOH?
• A vat contains 100 gallons of a 50% brine solution. What is the greatest amount of water that can be added if the salt content cannot drop below 25%?
• What is the purpose of adding Zn or Al in a blue Copper (#CuSO_4#) solution?
• Drag the solute into the box that labels which solvent it will dissolve more easily within?
• For the water solvent, how does #pK_w# evolve at HIGHER temperatures...? At #298*K#, #K_w=10^-14#...
• How many milliliters of 11.5 M HCl are needed to prepare 830.0 mL of 1.00 M HCI?
• What would you predict the appearance of an egg to be after the following procedure is performed?
• A solution contains 28% phosphoric acid by mass. What is meant by that statement?
• In a hypotonic solution, what way does water move?
• A saturated solution of lead(ll) nitrate was made at 50°C using 100 g of water, and this was then allowed to cool to 30 °C. What would happen as the solution cooled?
• How many moles of KCI are present in 189 mL of a 0.745 M solution?
• Question #f43b7
• Is a solution with a pH of 10 more basic than a solution with pH 8? Why so?
• Question #85d3e
• Question #25959
• What volume of a 0.40 M #Mg(NO_3)_2# solution contains 95 g of #Mg(NO_3)_2#?
• What is an #"homogeneous solution"#?
• What does it mean if a solution is concentrated?
• What is the part of a solution that is present in the larger amount?
• What are the three types of solution?
• A vinegar solution has a #[OH^-] = 4.2*10^-10# #M# at 25°C. What is the #[H_3O^+]# of the vinegar solution?
• In a saltwater solution, what is salt?
• Is the ionic strength of a solution simply the sum of the concentrations of the reactant and product ions?
• What is the difference between ideal and nonideal binary solutions? What are examples?
• Question #7e44d
• Which of these designates a gas at room temperature?
• You have a drug that has a concentration of #0.50*g*cm^-3#. What volume of solution is delivered for a #2*g# dose?
• What does the pH of a solution indicate? As the hydronium ion concentration of a solution increases, does the pH of the solution increase or decrease?
• What chemicals are used in aerated drinks?
• How do you calculate [#NO_3^(-)#] if 120 mL of 0.40 M #KNO_3# is mixed with 400 mL of 1.2 M #Pb(NO_3)_2#?
• What is the substance that is dissolved in a solution?
• What is the color of #Cu^(2+)# in solution? What is the color of glucose in solution? What the color and formula are of copper (l) oxide?
• Question #c898b
• You are preparing to administer a liquid suspension. What must you do first?
• When the solvent is a solid and the solute is a gas, what will the state of the solution be?
• Question #7ed13
• What is a standard solution?
• What is diffusion?
• How would you determine the amount of dissolved salts in water?
• Is air an example of a gaseous solution?
• Does a hypertonic solution have more solute or more volume of water than a hypotonic solution?
• What is the rate of effusion of #N_2(g)# in relation to that of #Cl_2(g)# under the same conditions?
• A sample cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 millicuries/mL. If the patient undergoing the test needs dose of 10. millicuries, how much of the solution a should be injected into the patient?
• Why does the green precipitate obtained from an iron (II) salt slowly turn brown when in contact with air?
• How many moles are in sodium chloride in 150 mL of a 2 mM NaCl solution?
• Question #444c2
• Question #16720
• Question #036ed
• A solution is prepared from #25*g# of salt dissolved in #1*L# of water. If the salt is an hydrate of sodium thiosulfate, how many water molecules are associated with this salt?
• Question #9d10b
• What process makes seawater usable by removing the salt?
• A solution is another name for what?
• If a crystal added to an aqueous solution causes many particles to come out of solution, what can be said about the original solution?
• In an aqueous solution, once all of the ions have attached themselves to the oppositely charged ends of the molecules of water, what is the the compound considered to be?
• Can a salt solution conduct an electric current?
• Can a sugar solution conduct electric current?
• What is a neutral solution?
• What color is bromcresol green after it is added to a sample of #NaOH(aq)#?
• What is a solution that has only a small amount of acid called?
• How many hydroxide ions are needed to completely neutralize 1.0 liter of 0.50 M HCI?
• What is an example of solvation that involves dispersion forces?
• What volume of 0.475 M hydrochloric acid solution reacts with 36.4 mL of 0.350 M sodium hydroxide solution?
• Why do ideal solutions behave differently from non-ideal solutions?
• What happens when the temperature of a solution increases?
• What happens when the temperature of a solution increases?
• How is presence of electrolytes tested in solution?
• Is a substance that is present in a solution in a smaller amount and is dissolved by the solvent called the solute?
• What are some examples of non-ionizing solutions in water?
• What volume of a 0.0320 M #KCN# solution contains #8.50x10^-3# mol of #KCN#?
• How can crystals of zinc sulphate be formed from a dilute solution of zinc sulphate?
• If #"0.64 g"# of napthalene (#M = "128.1705 g/mol"#) is dissolved in #"100 g"# a certain solvent (#T_f^"*" = 6^@ "C"#), whose #K_f = 20^@ "C"cdot"kg/mol"#, what is the new freezing point of the solvent?
• What is ionic solution?
• One thousand grams of seawater would consist of how many grams of dissolved substances?
• Question #3ef7d
• Are all solutions mixtures? And are all mixtures solutions?
• Question #43e92
• How many moles of #Na^+# ions are present in 275.0 mL of 0.35 M #Na_3PO_4# solution?
• What are positive and negative deviation with respect to ideal binary mixtures?
• Question #77396
• Give real life examples of homogeneous and heterogeneous solutions?
• After a student makes a solution, its temperature rises. What term describes this process?
• What does a hypotonic solution contain?
• Question #c152f
• Question #b0d02
• How do you calculate the number of grams of solute in 250.0 mL of 0.179 M KOH?
• What mass of silver chloride can be produced from 1.09 L of a 0.118 M solution of silver nitrate?
• How many milliliters of 0.45M HCI will neutralize 25.0 mL of 1.00M KOH?
• What mass of #Ca(OH)_2# is contained in 1500 mL of 0.0250M #Ca(OH)_2# solution?
• Are hydronium ions contributed to a solution by an acid or a base?
• Question #67163
• 105 g water is saturated with ammonia gas to form a solution of density 1.0g / mL and containing 30g ammonia, by mass. What is the volume of solution formed?
• Question #7c8b9
• Can salinity be negative?
• Can someone help me please? I answered one of them but I would like someone to check it as well. For the other two, I honestly not sure how to do it. Thanks!
• How does the concentration of a solute change when more solvent is added?
• What is the freezing point of a solution containing 6.5 % KCl by mass (in water).?
• A sample of seawater contains 0.000245 g of sodium chloride per mL of solution. How much sodium chloride is contained in 50.0 mL of this solution?
• If #2.0# #mu"L"# of a sample must be diluted by a factor of #50#, what volume of solvent should be added to accomplish this?
• If 100.0 mL of 0.426 M NaOH solution is diluted to 500.0 mL, what is the concentration of the diluted solution?
• Question #5f5fb
• The most commonly used skin antiseptic, rubbing alcohol, is how many percent alcohol?
• Question #62404
• You add 55 grams of #KClO_3# to 60 grams of water that is at 90°C. How much water must you add to perfectly dissolve all of the #KClO_3#?
• How many grams of #CuSO_4# are present in 652 mL of .250 M #CuSO_4# solution?
• Find the mass of urea, #"CO"("NH"_2)_2#, needed to prepare #"49.0 g"# of a solution in water in which the mole fraction of urea is #7.58 * 10^(−2)#?
• In a solution consisting of 22% N2, 25% Ar, and the rest O2, which gas is the solvent? Type the name of the gas?
• In a solution consisting of 82% N2, 15% Ar, and the rest O2, which gas is the solvent? Type the name of the gas?