96.1k views
5 votes
What volume if dilute HNO3 solution (0.150 mol/L) is required to obtain 10.0 grams pure HNO3

User Riyas Ac
by
4.7k points

1 Answer

3 votes

Answer:

1.058 L

Step-by-step explanation:

Data given:

Molarity of HNO₃ solution = 0.150 mol/L

Mass of HNO₃ = 10 g

volume of HNO₃ solution = ?

Solution:

First we have to know the number of moles for 10 g of HNO₃

Now calculate mass to moles

Formula used

no. of moles = Mass of HNO₃ / Molar mass . . . . . . . . . . (1)

molar mass of HNO₃ = 1 + 14 + 3(16)

molar mass of NaNO₃ = 63 g/mol

Put value in equation 1

no. of moles = 10 g / 63 g/mol

no. of moles = 0.1587 mol

Now to find volume

Formula used for Molarity

Molarity = number of moles of solute / volume of solution

Rearrange above equation

volume of solution = number of moles of solute / Molarity . . . . . . . (2)

Put values in equation 2

volume of solution = 0.1587 mol / 0.150 mol/L

volume of solution = 1.058 L

volume of dilute HNO₃ solution = 1.058 L

User Opera
by
4.5k points