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inn [45]
3 years ago
6

Please show work, im really confused so please help!!

Chemistry
1 answer:
Rama09 [41]3 years ago
4 0
No because the mass of the empty beaker , mass of beaker  is not balanced the amount of alcohol in the beaker.
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Paul added a sample of bromic acid to water and found the pOH to be 10. What is the pH of the solution?
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Answer:

Explanation:

pH + pOH = 14

pH + 10 = 14

pH = 14 - 10 = 4

Therefore pH of the solution is 4 .

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Nitrogen dioxide is a red-brown gas responsible for the brown color of smog. A container of nitrogen dioxide that is at low pres
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Answer:

Initially 1.51\times 10^{-2} moles of nitrogen dioxide were in the container .

Explanation:

Volume of the container at low pressure and at room temperature =V_1=3.4 L

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After more addition of nitrogen gas at the same pressure and temperature.

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Number of moles in the container after addition=n_2=2.28\times 10^{-2} mol

Applying Avogadro's law:

\frac{Volume}{Moles}=constant (at constant pressure and temperature)

\frac{V_1}{n_1}=\frac{V_2}{n_2}

n_1=\frac{V_1\times n_2}{V_2}=\frac{3.4 L\times 2.28\times 10^{-2} mol}{5.11 L}

n_1=1.51\times 10^{-2} mol

Initially 1.51\times 10^{-2} moles of nitrogen dioxide were in the container .

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