Answer:
The correct option is FALSE
Explanation:
Mole ratio is the ratio of the number of moles of two compounds in a balanced chemical reaction. Number of moles of a compound in a chemical reaction is the number written before the compound.
For example, the mole ratio of Iron (Fe) and water (H₂O) in the equation below is 3:4
3Fe + 4H₂O ⇒ Fe₃O₄ + 4H₂
Thus, mole ratio does not compare subscripts of compounds.
Answer: The new pressure is 0.509 atm
Explanation:
The combined gas equation is,
![\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7BP_1V_1%7D%7BT_1%7D%3D%5Cfrac%7BP_2V_2%7D%7BT_2%7D)
where,
= initial pressure of gas = 1.20 atm
= final pressure of gas = ?
= initial volume of gas = 580 ml
= final volume of gas = 1.45 L = 1450 ml (1L=1000ml)
= initial temperature of gas = ![22^0C=(22+273)K=295K](https://tex.z-dn.net/?f=22%5E0C%3D%2822%2B273%29K%3D295K)
= final temperature of gas = ![40^0C=(40+273)K=313K](https://tex.z-dn.net/?f=40%5E0C%3D%2840%2B273%29K%3D313K)
Now put all the given values in the above equation, we get:
![\frac{1.20\times 580}{295}=\frac{P_2\times 1450}{313}](https://tex.z-dn.net/?f=%5Cfrac%7B1.20%5Ctimes%20580%7D%7B295%7D%3D%5Cfrac%7BP_2%5Ctimes%201450%7D%7B313%7D)
![P_2=0.509atm](https://tex.z-dn.net/?f=P_2%3D0.509atm)
The new pressure is 0.509 atm
Answer:
grams/mol of carbon is needed to react with hydrogen gas to produce 59.8 grams of acetylene (C2H2)
Explanation:
The molecular weight of acetylene is 26.04 g/mol
Molecular weight of carbon is equal to 12.011 g/mol
Two carbon atom produces one acetylene molecule.
Thus, 2 * 12.011 g/mol of carbon is used to produce 26.04 g/mol of acetylene,
Amount of carbon required to produce 59.8 grams of acetylene
grams/mol
grams/mol of carbon is needed to react with hydrogen gas to produce 59.8 grams of acetylene (C2H2)