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anzhelika [568]
3 years ago
13

5. A flask containing 90.0 mL of hydrogen gas was collected under a pressure of 97.5 atm. At what

Chemistry
1 answer:
marishachu [46]3 years ago
5 0

Answer:

0.125 atm

Explanation:

From the question,

Applying boyles law

PV = P'V'................................. Equation 1

Where P = Initial pressure, V = Initial volume, P' = Final pressure, V' = final Volume.

make P' the subject of the equation

P' = PV/V'............................. Equation 2

Given: P = 97.5 atm, V = 90 mL = 0.09 L, V' = 70 L.

Substitute these values into equation 2

P' = 97.5×0.09/70

P' = 0.125 atm

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A weather balloon is filled with helium that occupies a volume of 5.00 × 10^4 L at 0.995 atm and 32.0°C. After it is released, i
DaniilM [7]

Answer:

The new volume is 5.913*10^4 L

Explanation:

Step 1: Write out the formula to be used:

Using general gas equation;

P1V1 / T1 =P2V2 /T2

V2 = P1V1T2 / P2T1

Step 2: write out the values given and convert to standard unit's where necessary

P1 = 0.995atm

P2 0.720atm

V1 = 5*10^4 L

T1 = 32°C = 32+ 273 = 305K

T2 = -12°C = -12 + 273 = 261K

Step 3: Equate your values and do the calculation:

V2 = 0.995 * 5*10^4 * 261 / 0.720 * 305

V2 = 1298.475 * 10^4 / 219.6

V2 = 5.913 * 10^4 L

So the new volume of the balloon is 5.913*10^4 L

3 0
3 years ago
Name this compound (ignore Stereocenter)<br>​
anyanavicka [17]
Compound name:

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5 0
2 years ago
What are some factors that might cause our percent yield to be greater than 100%? What are some factors that might cause it to b
belka [17]
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8 0
3 years ago
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gulaghasi [49]

Answer:

B

Explanation:

i think with exothermic reactions heat is released

this is what i looked up

hope this helps i took chem last year and think this is what i learned

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The answer is TRUE.

Hope it helps.
7 0
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