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M (molarity) devided by m (molality) = ?

answer is on density,volume,m and M
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Two identical vessels are connected by a tube with a valve letting the gas pass from one vessel into the other is the pressure diff. is greater than or equal to 1.10 atm. Initially there was a vacuum in one vessel while the other contained ideal gas at a temperature t1=27 degree Celsius and pressure p1=1.00 atm. THen both the vessels were heated to a temp t2=107 degree celsius. Up to what value will the pressure in the first vessel increase?
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