What is the mass, in grams, of each of the following? 2.3•10^-3 mol of Sb. Expre

Question

What is the mass, in grams, of each of the following?
2.3•10^-3 mol of Sb. Express using two significant digits
3.56•10^-2 mol of Ba. Express using three significant digits
44.0 mol of Xe. Express using three significant digits
1.4 mol W. Express using two significant digits




What is the mass, in grams, of each of the following?
2.3•10^-3 mol of Sb. Express using two significant digits
3.56•10^-2 mol of Ba. Express using three significant digits
44.0 mol of Xe. Express using three significant digits
1.4 mol W. Express using two significant digits





2.3•10^-3 mol of Sb. Express using two significant digits
3.56•10^-2 mol of Ba. Express using three significant digits
44.0 mol of Xe. Express using three significant digits
1.4 mol W. Express using two significant digits

Explanation / Answer

2.3•10^-3 mol of Sb

mass of Sb           = no of moles * gram atomic mass

                           = 0.0023*121.76   = 0.28g

3.56•10^-2 mol of Ba

mass of Ba           = no of moles * gram atomic mass

                            = 0.0356*137    = 4.87g

44.0 mol of Xe

mass of Xe           = no of moles * gram atomic mass

                             = 44*131= 5.76*103 g

1.4 mol W

mass of W           = no of moles * gram atomic mass

                           = 1.4*183.84     = 2.6*102 g

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