A 13.00 g sample of citric acid reacts with an excess of baking soda as shown in the equation.

2 answers:

8 0

From Law of definite proportion
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Citric acid (Mw) / 3CO2 (Mw) = Citric acid (g) / 3CO2 (g)
So (12)6+(1)8+(16)7 / 3[12 + (16)2] = 13 / 3CO2
192 / 132 = 13 / CO2
You can get 3CO2 = 8.93 g

PolarNik [594]1 year ago

4 0

Answer:

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Aqueous hydrobromic acid hbr will react with solid sodium hydroxide naoh to produce aqueous sodium bromide nabr and liquid water

Natalka [10]

Balanced equation is

HBr + NaOH ----> NaBr + H2O

Using molar masses

80.912 g HBr reacts with 39.997 g of Naoh to give 18.007 g water

so 1 gram of NaOH reacts with 2.023 g of HBR
and 5.7 reacts with 11.531 g HBr so we have excess HBr in this reaction

Mass of water produced = (5.7 * 18.007 / 39.997 = 2.6 g to 2 sig figs

8 0

3 years ago

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A Carnot cycle operates between the temperatures limits of 400 K and 1600 K, and produces 3600 kW of net power. The rate of entr

TiliK225 [7]

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The entropy of a system:

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Q = $\frac{WT_{H}}{T_{H}- T_{L}}$