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27 January, 17:23

Select the correct answer.

Given:

2LiBr + Ba → BaBr2 + 2Li

In this chemical reaction, 325 grams of barium (Ba) react completely. How many moles of lithium (Li) are produced?

A.

1.18 mol

B.

2.37 mol

C.

4.73 mol

D.

16.4 mol

E.

32.9 mol

+3
Answers (1)
  1. 27 January, 20:10
    0
    Ans: 4.73 moles

    Given reaction:

    2LiBr + Ba → BaBr2 + 2Li

    Mass of Ba = 325 g

    Atomic mass of Ba = 137.32 g/mol

    # moles of Ba = 325/137.32 = 2.368 moles

    Based on the reaction stoichiometry:

    1 mole of Ba produces 2 moles of Li

    Therefore, 2.368 moles of Ba will produce, 2.368*2 = 4.736 moles
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