The word equation for the formation of water would be: hydrogen + oxygen --> water. A hydrogen molecule (H2) and an oxygen mo
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14.7lb/in²
Explanation:
This is a conversion problem from atm to pounds per square inch
Pressure is the combined force per unit area of substance on another.
Given pressure = 0.5atm
To solve this problem ;
Convert from atm to N/m² to pound per square inch
1 atm = 101325N/m²
0.5atm = 0.5 x 101325 = 50,662.5N/m²
now we need to convert to pound per square inch;
1N = 0.225lb
1m = 39.37in
Solving;
101325 N = 14.7lb/in²
learn more:
Pressure of gases brainly.com/question/10897667
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<u>Answer:</u> The percentage yield of HF is 73.36 %
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
....(1)
For calcium fluoride:
Given mass of calcium fluoride = 6.25 kg = 6250 g (Conversion factor: 1 kg = 1000 g)
Molar mass of calcium fluoride = 78.07 g/mol
Putting values in above equation, we get:
For the given chemical reaction:
By Stoichiometry of the reaction:
1 mole of calcium fluoride produces 2 moles of hydrofluoric acid
So, 80.05 moles of calcium fluoride will produce = of hydrofluoric acid
Now, calculating the theoretical yield of hydrofluoric acid using equation 1, we get:
Moles of of hydrofluoric acid = 160.1 moles
Molar mass of hydrofluoric acid = 20.01 g/mol
Putting values in equation 1, we get:
To calculate the percentage yield of hydrofluoric acid, we use the equation:
Experimental yield of hydrofluoric acid = 2.35 kg
Theoretical yield of hydrofluoric acid = 3.20 kg
Putting values in above equation, we get:
Hence, the percentage yield of HF is 73.36 %