Question

If 5.4 g of NaNO3 is dissolved in 350 mL of water, what is the molarity of the solution?

Answer 1

0.18 Moles

Step-by-step explanation:

first you need to convert the 5.4g to moles using molar mass

`((5.4g)/(1))((1mol)/(84.99g) )=(5.4g)/(84.99g) =0.0635mol NaNO_(3)`)

once you have that done you can use the molarity equation to get the answer

`M=(0.0635mol)/(0.350ml) =0.181428`

now you need to round to the correct sig fig which will give you the correct answer of 0.18moles