3. Select the correct statement from the following choices that best explain the result recorded in the table as shown in question 1. O A The ratio of the effusion rate of hydrogen gas to that of methane gas is 3.20 B The molar mass obtained from experiment is lower than that of the actual molar mass of the gas A C. The molar mass obtained is different from the actual motar mass of Gas A due to the presence of impurities O D. The impurities presence might have the molar mass that is smaller than Gas A 4. What difference would you expect on the time of effusion and molar mass of gas Aif the experiment wvere carried out using the same apparatus at a higher temperature. A. At a higher temperature, gas molecules move inore rapidiy and effusion time would therefore longer B. At high temperature, the molar mass of gas A obtaned would be lower CAt high temperature, the ratio of effusion rate of hydrogen to gas A would be higher 0 At higher temperature, there is no change on the effusion rate of hydrogen gas to that of gas A

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. The time for effusion of hydrogen gas and Gas A was obtained in the
experiment of determining the molar mass of Gas A by effusion. Determine the
molar mass of Gas A from the data recorded in table below."
2.
4
Time for
effusion of
107
109
107
10.7
107
50cm3
hydrogen gas
is
Time for
effusion of 50
313
30 9
310
321
313
em3 Gas A
O A. 17.3 g/mol
O B. 12.8 g/mol
O C. 22.4 g/mol
O D. 13.4 g/mol
2. Predict the identity of Gas A in question 1 above if gas A consists only C and H.
O A. ethene
O B. ethane
O C. methane
D. propene
Transcribed Image Text:1. The time for effusion of hydrogen gas and Gas A was obtained in the experiment of determining the molar mass of Gas A by effusion. Determine the molar mass of Gas A from the data recorded in table below." 2. 4 Time for effusion of 107 109 107 10.7 107 50cm3 hydrogen gas is Time for effusion of 50 313 30 9 310 321 313 em3 Gas A O A. 17.3 g/mol O B. 12.8 g/mol O C. 22.4 g/mol O D. 13.4 g/mol 2. Predict the identity of Gas A in question 1 above if gas A consists only C and H. O A. ethene O B. ethane O C. methane D. propene
3. Select the correct statement from the following choices that best explain the
result recorded in the table as shown in question 1.
O A The ratio of the effusion rate of hydrogen gas to that of methane gas is 3:20
B The molar mass obtained from experiment
mass of the gas A
lawer than that of the actual molar
C The molar mass obtained is different from the actual molar mass of Gas A due to
The presence of impurities
O D. The imnpurities presence might tiave the molar mass that is smaller than Gas A
4. What difference would you expect on the time of effusion and molar mass of
gas A If the experiment were carried out using the same apparatus at a higher
temperature.
A. At a higher temperature, gan moleculen move more rapidiy and effusion time would
therefore longer
O B. At high temperature, the molar mass of gas A obtained would be lower
O C At high temperature. the ratio of effusion rate of hydrogen to gas A would be higher
O. At higher temperature, there is no change on thie effusion rate of hydrogen gas to
that of gas A
Transcribed Image Text:3. Select the correct statement from the following choices that best explain the result recorded in the table as shown in question 1. O A The ratio of the effusion rate of hydrogen gas to that of methane gas is 3:20 B The molar mass obtained from experiment mass of the gas A lawer than that of the actual molar C The molar mass obtained is different from the actual molar mass of Gas A due to The presence of impurities O D. The imnpurities presence might tiave the molar mass that is smaller than Gas A 4. What difference would you expect on the time of effusion and molar mass of gas A If the experiment were carried out using the same apparatus at a higher temperature. A. At a higher temperature, gan moleculen move more rapidiy and effusion time would therefore longer O B. At high temperature, the molar mass of gas A obtained would be lower O C At high temperature. the ratio of effusion rate of hydrogen to gas A would be higher O. At higher temperature, there is no change on thie effusion rate of hydrogen gas to that of gas A
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