Question

If 5.78 g of CuNO3 is dissolved in water to make a 0.580 M solution, what is the volume of the solution?

Answer 1

:)

Answer 2

First we will find the no. of moles
\[no. of moles = \frac{ mass }{ molar mass } \]
Mass is given here as 5.78g
Molar mass of CuNO3 = 125.5gmol^-1
Since we know these we can use the above equation to find the moles:
\[moles = \frac{ 5.78 }{ 125.5 } = 0.046 moles\]
There's another equation;
\[Volume = \frac{ moles }{ concentration } = \frac{ 0.046 }{ 0.580 } = 0.0793dm ^{3}\]

Answer 3

OKAY! okay I was .006 off with the moles thats why!

Answer 4

Alright ! :)