In each pair, choose the larger of the indicated

Chapter 3, Problem 89P

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QUESTION: Problem 89P

In each pair, choose the larger of the indicated quantities or state that the samples are equal:

(a) Entities: 0.4 mol of O3 molecules or 0.4 mol of O atoms

(b) Grams: 0.4 mol of O3 molecules or 0.4 mol of O atoms

(c) Moles: 4.0 g of N2O4 or 3.3 g of SO2

(d) Grams: 0.6 mol of C2H4 or 0.6 mol of F2

(e) Total ions: 2.3 mol of sodium chlorate or 2.2 mol of magnesium chloride

(f) Molecules: 1.0 g of H2O or 1.0 g of2O2

(g) Na+ ions: 0.500 L of 0.500 MNaBr or 0.0146 kg of NaCl

(h) Mass: 6.02×1023 atoms of 235U or 6.02 × 1023 atoms of 238U

Questions & Answers

QUESTION: Problem 89P

In each pair, choose the larger of the indicated quantities or state that the samples are equal:

(a) Entities: 0.4 mol of O3 molecules or 0.4 mol of O atoms

(b) Grams: 0.4 mol of O3 molecules or 0.4 mol of O atoms

(c) Moles: 4.0 g of N2O4 or 3.3 g of SO2

(d) Grams: 0.6 mol of C2H4 or 0.6 mol of F2

(e) Total ions: 2.3 mol of sodium chlorate or 2.2 mol of magnesium chloride

(f) Molecules: 1.0 g of H2O or 1.0 g of2O2

(g) Na+ ions: 0.500 L of 0.500 MNaBr or 0.0146 kg of NaCl

(h) Mass: 6.02×1023 atoms of 235U or 6.02 × 1023 atoms of 238U

ANSWER:

Solution 89P

Here we have to identify among that the given pair, which one is larger or the samples are equal:

Step 1

(a) Entities: 0.4 mol of O3 molecules or 0.4 mol of O atoms

Number of entities = no. of moles

0.4 mol of O3 = 0.4 mol= 2.4 1023 entities

0.4 mol of O atoms = 0.4 mol= 2.4 1023 entities

Thus the given samples are equal.

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