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21 June, 15:53

Water (H2O) has a molar mass of 18.0 g/mol. A sample of water has a mass of 18.0. How many moles of water are contained in this sample?

A. 1.00

B. 18.0

C. 36.0

D. 324

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Answers (1)
  1. 21 June, 16:06
    0
    To calculate number of moles:

    number of moles = given mass/molecular molar mass

    number of moles = 18 g / 18 g = 1 moles

    Therefore, your answer is A. 1.00 g
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