4 years ago

Sorry if it is blurry

Chemistry

2 answers:

Zina [86]4 years ago

7 0

I really cant read it sorry i tried

Grace [21]4 years ago

4 0

I think its a or c? idk if im wrong sowwie xD

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A sample of He gas (3.0 L) at 5.6 atm and 25°C was combined with 4.5 L of Ne gas at 3.6 atm and 25°C at constant temperature in

LenKa [72]

Answer:

$P=3.7atm$

Explanation:

Hello,

In this case, it is possible to determine the pressures of both helium and neon as shown below:

$n_{He}=\frac{P_{He}V_{He}}{RT}=\frac{5.6atm*3.0L}{0.082\frac{atm*L}{mol*K}*298.15K} =0.688molHe\\\\n_{Ne}=\frac{P_{Ne}V_{Ne}}{RT}=\frac{3.6atm*4.5L}{0.082\frac{atm*L}{mol*K}*298.15K}=0.663molNe$

Now, one considers the total moles (addition between both neon's and helium's moles) and the total volume to compute the final pressure as shown below:

$P=\frac{n_TRT}{V_T} =\frac{(0.688+0.663)mol*0.082\frac{atm*L}{mol*K}*298.15K}{9.0L}=3.7atm$

Best regards.

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3 years ago

Which would make it hard to draw a conclusion

lawyer [7]

B.

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3 years ago

A) State the Law of Conservation of Matter.

Mariulka [41]

Answer:

matter can either be created nor destroyed but can be transmitted fromone state to another state

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3 years ago

Classify water as proton donor or proton acceptor with reactions???

olasank [31]

Answer: It should a accepter

Explanation: because water is often used as solvent for solutes...there are exceptions

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3 years ago

What is the molarity of a solution that contains 4.3 mol of acetic acid (C2H3O2) in 450. mL of solution?

lord [1]

Hey there !

Number of moles of solution: 4.3 moles

Volume in liters:

450.0 mL / 1000 => 0.45 L

Therefore:

Molarity = number of moles / volume of solution ( L)

Molarity = 4.3 / 0.45

=> 9.55 M

Hope that helps!

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3 years ago