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In chemistry 22.4litres of gas weighs 70g at S.T.P.Calculate weight of gas if occupies...
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High School Teacher
By gas law:
PV= nRT, where P is pressure of the gas at the temperature T and R is a gas constant and n is the substance of gas in moles.
Put values in the equation For STP and The given temprature and pressure situations.
(1)/(2) eleminates R and reduces To:
760*22.4/(700*20) = (70/x)(273.15)/290.15
= 54.17 g
Posted by neela on June 30, 2009 at 1:38 PM (Answer #1)
It is 54 grams, correct to the nearest number. It is based on the formula, known as the gas law, which is PV= nRT. The figures can be directly put inside and solved. The rest is up to you to decide on how do you want to proceed.
Posted by revolution on February 23, 2010 at 11:19 PM (Answer #2)
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