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SVETLANKA909090 [29]
2 years ago
13

Baking soda (nahco3) is an active ingredient in some antacids. determine the percent composition of oxygen in baking soda.

Chemistry
1 answer:
telo118 [61]2 years ago
8 0
Assuming the question is asking for percent composition by mass,

The molar mass of sodium bicarbonate is:

22.990 + 1.008 + 12.011 + 3*15.999 = 84.006 g/mol

The molar mass of 3 oxygen atoms is:

3*15.999 = 47.997 g/mol

The percentage composition by mass is:

47.997/84.006 * 100% = 57.1% (3 s.f.)
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In the reaction of aluminum bromide with ionized sodium bromide which compoiund is the lewis acid
murzikaleks [220]
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What are the substances making up a mixture called
dimulka [17.4K]

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Answer:

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Explanation:

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The significant figures rule for multiplication is that we must us the amount of significant figures in the number with the least significant figures, in this question this is 2 significant digits from both 9.0 × 10⁻⁴ m and 8.1 × 10⁴ m.

7 0
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