hw help please answer q5 and q6 if possible please its the same report sheet Rep

Question

hw help please answer

q5 and q6 if possible please its the same report sheet

Report Sheet Q3 A sample of helium has a volume of 325 ml. and a pressure of 655 mm Hg, Whan will be the pres- sure if the helium is compressed to 125 mL. (T constank)y? (Show work.) 06 A 75.0-ml, sample of oxygen has a pressure of 1.50 atm. What will be the new volume if the pressure becomes 4.50 atm (T constant)? (Show work.) Q.7 In a weather report, the atmospheric pressure is given as 29.4 inches of mercury. What is the corresponding pressure in mm Hg?

Explanation / Answer

Q.5

This problem is based on Boyles law. This law states that for a fixed amount of gas at constant temparature, the gas volume is inversely proportional to gas pressure.

Thus P1 V1 = P2 V2

Here P1 = 655 mm of Hg , V1 = 325 ml , V2 = 125 ml , P2 = ?

P2 = (P1 V1)/V2 = (655 *325)/125 = 1703 mm of Hg

Q.6

This problem is also based on Boyles law.

Thus P1 V1 = P2 V2

Here P1 = 1.50 atm , V1 = 75.0 ml , V2 = ? ml , P2 = 4.50 atm

V2 = (P1 V1)/P2 = (1.50 *75.0)/4.50 = 25.0 ml

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