Answer:
Explanation:
The Ideal Gas Law states that PV=nRT.
Rearrange that into P/n=RT/V.
In this case, the cylinder is rigid so the volume, V, does not change.
Temperature does not change either.
Out of 450 grams of gas, 150 grams leak out. So only 450-150 = 300 grams is left.
n is number of moles which is dependent on mass:
n1/n2 = 450/300 = 3/2
P1/n1 = RT/V = P2/n2
P2 = P1/n1*n2
= 7.2/3*2
= 4.8 atmosphere
Answer:
litmus paper turns red under acidic conditions
Explanation:
Answer:
Because the amount of water must be measured with precision.
Explanation:
Hello!
Adiabatic calorimeters are used to measure the amount of heat absorbed or transferred during a chemical reaction.
When using the calorimeter, the reagent masses must be accurately measured to avoid errors in the calculations.
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