
For given reaction,
The volume of gas formed when calcium carbonate is dissolved in excess hydrochloric acid at and pressure is:
[1 mole of any gas at and pressure occupies volume]
A)
B)
C)
D)
Answer
473.4k+ views
Hint: We perceive the volume involved by one mole of substance at a given temperature and weight is called molar volume. It is routinely valuable to the gases where the idea of the gas doesn't influence the volume. The most widely recognized representation is that the molar volume of gas at standard temperature-pressure condition is equivalent to for one mole of an ideal gas at temperature equivalent to and pressure equivalent to .
Complete step by step answer:
The reaction is
We are on familiar terms with that, At STP, 1 mole of a gas occupies of volume.
Thus volume of carbon dioxide formed from can be calculated as,
Thus the volume of carbon dioxide formed from is .
Therefore, the option (D) is correct.
Additional information:
We realize that, Vapor density is the proportion of the mass of a volume of a gas, to the mass of an equivalent volume of hydrogen, estimated under the standard states of temperature and pressure.
First, we have to calculate the molar mass of a gas using the relation.
If the given vapor density of the gas is .
Thus, the molar mass of the gas is calculated as,
Next, we have to calculate the number of moles of the gas.
Let us assume that the given amount of the gas is .
Therefore the number of moles of the gas is given by,
We are on familiar terms with that, At STP, 1 mole of a gas occupies of volume. Here, we have about of the gas. Hence, the volume of gas filled at STP is,
Thus, of a gas, with a vapor density of , will occupy of volume at STP.
Note:
Now we can see the difference between atmosphere and NTP:
Standard temperature and pressure conditions are thought of as STP. The quality temperature value is and the standard pressure value is or Normal Temperature and Pressure is known as NTP the worth of pressure at NTP is and the temperature at NTP is .
Complete step by step answer:
The reaction is
We are on familiar terms with that, At STP, 1 mole of a gas occupies
Thus volume of carbon dioxide formed from
Thus the volume of carbon dioxide formed from
Therefore, the option (D) is correct.
Additional information:
We realize that, Vapor density is the proportion of the mass of a volume of a gas, to the mass of an equivalent volume of hydrogen, estimated under the standard states of temperature and pressure.
First, we have to calculate the molar mass of a gas using the relation.
If the given vapor density of the gas is
Thus, the molar mass of the gas is calculated as,
Next, we have to calculate the number of moles of the gas.
Let us assume that the given amount of the gas is
Therefore the number of moles of the gas is given by,
We are on familiar terms with that, At STP, 1 mole of a gas occupies
Thus,
Note:
Now we can see the difference between atmosphere and NTP:
Standard temperature and pressure conditions are thought of as STP. The quality temperature value is
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