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vekshin1
2 years ago
7

Who can answer these?

Chemistry
1 answer:
sesenic [268]2 years ago
6 0
For the first one.. the Reactant side is Zn+2HCl produces Zncl2 and H2... and it is balanced too
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In the hydrogenation of oils the catalyst used is: <br>A. Pt<br>B. Ni <br>C. Fe<br>D. V2O5​
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A sample of oxygen gas in one container has a volume of 20.0mililiter at 297 K and 101.3 kPa. The entire sample is transferred t
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Answer: V_2=\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

V_2=\frac{P_1V_1T_2}{T_1P_2}

where,

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P_2 = final pressure of gas = 94.6 kPa

V_1 = initial volume of gas = 20.0 ml

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T_1 = initial temperature of gas = 297K

T_2 = final temperature of gas = 283K

Now put all the given values in the above equation, we get the final volume of gas.

V_2=\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}

V_2=20.4ml

Thus the correct numerical setup for calculating the new volume is \frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}

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3 years ago
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In the root beer which is a soft drink which is obtained in different flavor sometime with caffeine and without caffeine. The unopened bottle of root beer is homogeneous mixture.

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