A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid releases 0.25 ml of CO2 at T=298.15 K and P=1 bar. If molar volume of CO2 is 25.0 L under such condition, what is the percentage of sodium bicarbonate in each tablet? [Molar mass of NaHCO3=84 b mol−1] |
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(a) |
16.8 |
(b) |
8.4 |
(c) |
0.84 |
(d) |
33.6 |
A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid releases 0.25 ml of CO2 at T=298.15 K and P=1 bar. If molar volume of CO2 is 25.0 L under such condition, what is the percentage of sodium bicarbonate in each tablet? [Molar mass of NaHCO3=84 b mol−1] |
|||
(a) |
16.8 |
(b) |
8.4 |
(c) |
0.84 |
(d) |
33.6 |