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Alex_Xolod [135]
3 years ago
12

If a student puts 2.7 moles of gas in a container with a volume of 57.0 and at a temperature of 127°C what is the pressure insid

e the container?
Chemistry
1 answer:
Delvig [45]3 years ago
7 0
23 would be the answer actually idk I just need to answer some answers
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Dependent variable definition
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Answer:

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Which solution below yields the lowest final concentration of a sodium hydroxide solution prepared by diluting 50.00 mL of conce
Firdavs [7]

Answer:

The answer to your question is: letter D. 1.33 L

Explanation:

Data

V1 = 50 ml

C1 = 19.3

To solve this problem use the formula  C₁V₁ = C₂V₂

                            C2 = C1V1 / V2

C = concentration

V = volume

a) 1.15 L

                     C2 = (19.3)(50) / 1150

                      C2 = 0.84 M

b) No right answer

c) V2= 0.80 L

                     C2 = (19.3)(50) / 800

                     C2 = 1.2 M

d) V2 = 1.33 L

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                       C2 = 0.72 M

e) V2 = 350 ml

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3 0
3 years ago
A compound with the empirical formula ch2 has a molar mass of 98 g/mol what is the molecular formula for this compound ?
madam [21]
Approximate molecular masses:
Molecular mass of C = 12
Molecular mass of H = 1

Let n = moles required for CH₂.
Then
nCH₂ = 98
n(12 + 2*1) = 98
14n = 98
n = 7

Answer: The molecular formula is 7CH₂

7 0
2 years ago
Would a thermos without a lid with water in it be an open or closed system? I'm so confused... also please explain your answer,
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. A closed system allows only energy transfer but no transfer of mass. Example: a cup of coffee with a lid on it, or a simple water bottle. ... In reality, a perfectly isolated system does not exist, for instance hot water in a thermos flask cannot remain hot forever.

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3 years ago
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AfilCa [17]

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The Sunlight

Oxegyn

Heat in soi

Explanation:

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