Question

Molarity question:
you have 695 mL of a o.61 M solution of nitric acid. what is the weight of the nitric acid in solution. 27 g

Answer 1

so you have 0.61 M

M= n/L ... so you have 0.61 moles of HNO3 in 1 L of water..

0.61 mol/L x 63g/mol = 38.43 g/L

you have a volume of 0.695 L.. 38.43 g/L x 0.695 L = 26.71 g of HNO3

Answer 2

what about 27g?
I dont need to use this mass?

Answer 3

i think that was the answer

Answer 4

Thank you :) could you help with other question? 66.32 g Pb(So4)2 are dissolved into a 1350 mL solution and 136.2 g FeSo4 are dissloved into a 980 mL solution. which solution contains a higher molarity of sulfate ion?

Answer 5

ill tell you how to do it, how bout that?

find the number of moles then find molarity ..
wait are you sure it's Pb(SO4)2? not PbSO4

Answer 6

so yeah, find moles in each solution.. n=m/MW

then find molarity M=n/L

which ever one is higher wins

Answer 7

thanks, MW stands for mass weight?

Answer 8

molecular weight or molecular mass