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10 December, 15:00

In the synthesis reaction, the white powder produced is magnesium oxide (mgo, mm = 40.3 g/mol). how many moles of magnesium oxide were formed (number of moles = mass (g) / molar mass (g/mol)) ? choose the closest answer.

a. 0.21 moles

b. 0.41 moles

c. 0.11 moles

d. 0.31 moles submit for grading save and finish later

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  1. 10 December, 15:24
    -1
    Number of moles = mass of product / molecular mass

    =mass of product (MgO) / 40.3

    Since the mass of MgO is not given in the question, the correct answer choice cannot be given. However, proceeding witht eh above formula will enable you to find the correct number of moles given the mass of MgO.
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