231k views
3 votes
How many moles of water (h2o) are present in a beaker containing 45.9 g h2o?

User Boeckm
by
8.3k points

2 Answers

3 votes

Answer:

The answer is 2.55

Step-by-step explanation:

User Zeks
by
8.2k points
4 votes
answer: 2.55 moles of H2O

you multiply the given amount of H2O in grams by the ratio of 1 mole of H2O to the grams of H2O, which is the molar mass (g/mol) of H2O

45.9 g H2O times (1 mole/18.015 g H2O) = 2.55 moles of H2O
User Hiren Panchal
by
8.9k points