The percent by mass of oxygen in carbon dioxide (
) is 72.71%.
<u>Scientific data:</u>
- Molar mass of oxygen gas = 32 g/mol.
- Molar mass of carbon = 12 g/mol.
To calculate the percent by mass of oxygen in carbon dioxide ():
First of all, we would calculate the molar mass of carbon dioxide ();
For the percent by mass of oxygen:
Substituting the parameters into the formula, we have;
Percent mass of oxygen = 72.71%
Read more on percent mass here: brainly.com/question/15182450
Answer:
answer is b
In order to balance out the equation, you bed to double the amount of H atoms you have and the number of CL atoms. to do this you put a 2 infrount of the HCL
Answer:
0.0069 mol
Explanation:
Given data:
Temperature = 25°C
Volume of gas = 0.044 L
Pressure of gas = 3.81 atm
Number of moles of gas = ?
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
Now we will convert the temperature.
25+273 = 298 K
3.81 atm × 0.044 L = n × 0.0821 atm.L/ mol.K × 298 K
0.17 atm.L = n ×24.47 atm.L/ mol
n = 0.17 atm.L/24.47 atm.L/ mol
n = 0.0069 mol
It is added because NH3 is added
