Question

How many moles are there in 15.0 grams of SiO2

Answer 1

Answer:

0.25 M

Explanation:

There is 60.0843 G of SiO2 per M making 15 g equal roughly 0.25

Answer 2

n(mole)=mass: MM(molar mass)

n = 15 : 60

n = 0.25