If an Alka-Seltzer tablet contained 309 mg of aspirin, $1.927 \times 10^{03}$ $1.927 xx 10^03$ mg of sodium hydrogen carbonate, and $1.004 \times 10^{03}$ $1.004 xx 10^03$ mg of citric acid and nothing else, what is the percent, by mass, of sodium hydrogen carbonate in the tablet?

Question

If an Alka-Seltzer tablet contained 309 mg of aspirin, $1.927 \times 10^{03}$ $1.927 xx 10^03$ mg of sodium hydrogen carbonate, and $1.004 \times 10^{03}$ $1.004 xx 10^03$ mg of citric acid and nothing else, what is the percent, by mass, of sodium hydrogen carbonate in the tablet?

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Answer 1 · 2016-10-01T22:34:10

The percent composition of sodium hydrogen carbonate $({NaHCO}_{3})$ $("NaHCO"_3")$ in the Alka-Seltzer tablet is 59.5%.

Explanation:

Percent composition is determined by dividing the mass of the specified compound by the total mass, then multiply by 100.

$Percent composition = \frac{mass of specified component}{total mass} \times 100$ $"Percent composition"="mass of specified component"/"total mass"xx100"$

Add the masses of the compounds.

$(309 mg) + (1.927 \times 10^{3} mg) + (1.004 \times 10^{3} mg) = 3.24 \times 10^{3} mg$ $("309 mg")+(1.927xx10^3 "mg")+(1.004xx10^3"mg")=3.24xx10^3 "mg"$

Divide the mass of sodium hydrogen carbonate ${NaHCO}_{3}$ $"NaHCO"_3"$ by the total mass of the tablet, then multiply by 100.

${Percent composition of NaHCO}_{3} = \frac{1.927 \times 10^{3} {mg HCO}_{3}}{3.24 \times 10^{3} mg} \times 100 = {59.5% NaHCO}_{3}$ $"Percent composition of NaHCO"_3=(1.927xx10^3"mg HCO"_3)/(3.24xx10^3"mg")xx100="59.5% NaHCO"_3"$

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If an Alka-Seltzer tablet contained 309 mg of aspirin, $1.927 \times 10^{03}$ $1.927 xx 10^03$ mg of sodium hydrogen carbonate, and $1.004 \times 10^{03}$ $1.004 xx 10^03$ mg of citric acid and nothing else, what is the percent, by mass, of sodium hydrogen carbonate in the tablet?

1 Answer

Explanation:

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Impact of this question

Science

Math

Humanities

... and beyond

If an Alka-Seltzer tablet contained 309 mg of aspirin, 1.927×10031.927 xx 10^03 mg of sodium hydrogen carbonate, and 1.004×10031.004 xx 10^03mg of citric acid and nothing else, what is the percent, by mass, of sodium hydrogen carbonate in the tablet?

1 Answer

Explanation:

Related questions

Impact of this question

If an Alka-Seltzer tablet contained 309 mg of aspirin, $1.927 \times 10^{03}$ $1.927 xx 10^03$ mg of sodium hydrogen carbonate, and $1.004 \times 10^{03}$ $1.004 xx 10^03$ mg of citric acid and nothing else, what is the percent, by mass, of sodium hydrogen carbonate in the tablet?