4 years ago

Derek needs a tool that delivers 25.00 mL of a sodium hydroxide solution. What tool would be best for him to use?

Chemistry

1 answer:

3241004551 [841]4 years ago

4 0

He may use a pipette with a volume greater than 25 ml to transfer the solution.

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A sample of a gas has a volume if 852mL at 288K. What temperature did s necessary for the gas to have a volume of 945mL?

asambeis [7]

Answer:

The answer to your question is T2 = 319.4°K

Explanation:

Data

Volume 1 = V1 = 852 ml

Temperature 1 = T1 = 288°K

Volume 2 = V2 = 945 ml

Temperature 2 = T2 = ?

Process

To solve this problem, use Charles' law.

V1/T1 = V2/T2

-Solve for T2

T2 = V2T1/V1

-Substitution

T2 = (945 x 288) / 852

-Simplification

T2 = 272160 / 852

-Result

T2 = 319.4°K

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Explanation :

To calculate the temperature of gas we are using ideal gas equation:

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n = number of moles = 0.500 mole

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T = Temperature of gas = ?

Now put all the given values in above equation, we get:

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$T=294.8Kapprox 295K$

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