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klasskru [66]
3 years ago
13

How to comprehend chemistry? A lot of it goes over my head and I don’t know where to start. Advice would be appreciated!

Chemistry
1 answer:
just olya [345]3 years ago
7 0
I recommend this channel called "Crash Course" on youtube and he has a playlist full of chemistry videos he makes it very fun & very easy to understand. Another option i recommend is researching chemistry on this website called "Khan academy" i did and it helped me alott!!
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A 1.00 L flask is filled with 1.10 g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pres
Alex Ar [27]

Answer: a) Partial pressure of argon is 0.673 atm.

b) Partial pressure of ethane is 0.427 atm.

Explanation:

According to the ideal gas equation:'

PV=nRT

P = Pressure of the argon gas = ?

V= Volume of the gas = 1.00 L

T= Temperature of the gas = 25°C = 298 K       (0°C = 273 K)

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas = \frac{\text {given mass}}{\text {Molar mass}}=\frac{1.10g}{40g/mol}=0.0275moles

P=\frac{nRT}{V}=\frac{0.0275\times 0.0821\times 298}{1.00}=0.673atm

Thus the partial pressure of argon is 0.673 atm.

b) According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_1+p_2

p_{total}=p_{Ar}+p_{ethane}

1.100=0.673+p_{ethane}

1.100-0.673=p_{ethane}

p_{ethane}=0.427atm

Thus partial pressure of ethane is 0.427 atm.

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3 years ago
What is the most stable part of the periodic table of elements
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Answer:

C

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plus u get a salt from this equation as well as water

thank me later kid

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