Answer:
45g
Step-by-step explanation:
Molar Mass of H2O = (2x1) +16 = 2 + 16 = 18g/mol
Number of mole of H2O = 2.5moles
Mass of H2O =?
Mass = number of mole x molar Mass
Mass of H20 = 2.5 x 18 = 45g
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