What is the molar quantity of a $0.40*g$ mass of sodium hydroxide?

Question

2992 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-09-02T11:35:19

As always we take the quotient: $"Number of moles"="Mass"/"Molar mass"$

And we gets an answer with units of moles.....

i.e. $"Number of moles"=(4*g)/(40*g*mol^-1)=0.1*mol.$

How many mole of sodium ion, and how many mole of hydroxide ion?

What is the molar quantity of a 0.40*g0.40*g mass of sodium hydroxide?