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27 December, 17:42

If a mole of sodium chloride weighs approximately 58 grams, and you have 29 grams of sodium chloride, how many moles of sodium chloride do you have?

A. 0.5 moles

B. 1 mole

C. 2 moles

D. 0.75 moles

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Answers (1)
  1. 27 December, 17:49
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    The answer is A. 0.5 moles

    a mole of sodium chloride weighs approximately 58 grams: 1 M - 58 g

    you have 29 grams of sodium chloride, how many moles of sodium chloride do you have: xM - 29g

    1 M : 58g = x : 29 g

    x = 1 M : 58g * 29 g = 0.5 M
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