Question

QUESTION 2
How many moles of water, H20, are present in 25.0 g H20?

Answer 1

1.39 moles

Step-by-step explanation:

Answer 2

No. moles = 0.74mol

Step-by-step explanation:

reacting mass = 25.0g molecular weight of water = 2(1) + 2(16) = 2 + 32 = 34g/mol

No. moles = reacting mass/molecular weight

No. moles = 25.0/34 = 0.74mol