Please help me with this lab!! 150mL Erlenmeyer Flask Close flask Insert pressur

Question

Please help me with this lab!!

150mL Erlenmeyer Flask

Close flask

Insert pressure gauge

Fill Flask with 1atm of pressure BUTANE (C4H10)

View the Volume taken up my liquids and solids. It will display 0mL because the flask contains ONLY GAS. This means the flasks total volume of 150mL is filled with gas.

Pressure gauge reads 1atm thus the first set of VOLUME-PRESSURE condition is 150mL and 1atm

ADD 20mL water to the flask

20mL wat+1atm BUTANE (C4H10)=1.15atm and 150mL- the 20mL taken up by the liquid water for a gas volume of 130mL

Continue to add increments of 20mL of water up to 100mL calculate the volume available to the gas and record the volume and pressure

Draw a straight line through the data points. Does your experimental data verify Boyle's Law? Explain.

I am so lost it is due tomorrow!

Explanation / Answer

BOYELS LAW-- AT CONSTANT TEMPERATURE PRESSURE OF A GIVEN MASS OF GAS IS INVERSELY PROPORTIONAL TO VOLUME OF THE GAS.

PV = CONSTANT (AT CONSTANT T) , PRESSURE AND VOLUME ARE INVERSLY RELATED.

when 20 ml of water is added to the the contents of flask the volume of the gas decreases and pressure increases by 0.15 atm.

Go on addition of 20 ml of water in steps and the pressure observed to be increased by 0.15 atm which obeys Boyles lwa definitely.

Take volume increments i.e 150, 130, 110, 90 ----------- 10 ml on x-axis and pressure changes on y-axis. this obeys Boyles law passing a straight line throuhg origin( this is done as per supplied information in the problem)

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