Question

What volume in milliters would give 12.0 grams of NaOH from a 2.0 M NaOH solution?

Answer 1

V = 150 mL

Step-by-step explanation:

Hello!

In this case, since the molarity of a solution is computed via:

`M=(n)/(V)`

Whereas we are asked to compute the volume:

`V=(n)/(M)`

Thus, we first compute the moles in 12.0 g of NaOH as its molar mass is about 40.0 g/mol:

`n=(12.0g)/(40.0g/mol)=0.3mol`

Thus, at first instance, the volume liters is:

`V=(0.3mol)/(2.0mol/L) \\\\V=0.15L`

Which in milliliters is:

`V=0.15L*(1000mL)/(1L)\\\\V=150mL`

Best regards!