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PSYCHO15rus [73]
3 years ago
9

What is the final volume of a sample of neon under 5.6 atm of pressure at 250 k if it was initially at 6.7 atm or pressure, 500k

, and was 18L?
Chemistry
2 answers:
icang [17]3 years ago
3 0

Answer:

V_2=10.8L

Explanation:

Hello,

In this case, we use the combined idea gas equation that help us to understand the volume-pressure-temperature relationship as:

\frac{P_1V_1}{T_1}= \frac{P_2V_2}{T_2}

So, we solve for the final volume as shown below, considering the given data at the beginning of the experiment:

V_2=\frac{P_1V_1T_2}{T_1P_2}=\frac{6.7atm*18L*250K}{500K*5.6atm}\\ \\V_2=10.8L

Best regards.

katrin [286]3 years ago
3 0

Answer:

10.77 L

Explanation:

Initial pressure P1= 6.7atm

Initial temperature T1= 500K

Initial volume V1= 18L

Final pressure P2= 5.6 atm

Final temperature T2= 250K

Final volume V2=???

From the general gas equation:

P1V1/T1 = P2V2/T2

P1V1T2 = P2V2T1

V2 = P1V1T2/P2T1

V2= 6.7×18×250/5.6×500= 30150/2800

V2= 10.77 L

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6 0
3 years ago
A solution of ammonia has a pH of 11.8. What is the concentration of OH– ions in the solution?
balu736 [363]
PH + pOH = 14

11.8 + pOH = 14

pOH = 14 - 11.8

pOH = 2.2

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[OH-] = <span>6.33 x 10^-3 M
</span>
Answer B

hope this helps!





3 0
3 years ago
Read 2 more answers
A solution of carbonic acid is at equilibrium. How would the system change is more carbonic acid was added to the solution
7nadin3 [17]

Answer:

The equilibrium position shifts to the right, in accordance to the constraint principle

3 0
3 years ago
How many unpaired electrons are in the c 2 + ​ ion?
sladkih [1.3K]
Atomic number of C is 6. Hence, there are 6 electrons in carbon.

The electronic configuration of carbon is 1s2, 2s2, 2p2

Here, there are 2 unpaired electron. However, C2+ ions have 2 electrons less as compared to C.

Hence, electronic configuration of C 2+ ion is 1s2, 2s2. All the electrons are paired in this system. So there are no unpaired electrons in C 2+ ion. 
7 0
3 years ago
Can some help me do this we have a final tomorrow and i have now idea how to do it. Step by Step explanation and tips If you kno
Romashka-Z-Leto [24]

Answer:

87.27 grams

Explanation:

The mole ratio of nitrogen to hydrogen is 1:3; while that one of hydrogen to the products (ammonia) is 3:2

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(7.7moles×2)/3

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since the mass of an atom of nitrogen is 14 while that of hydrogen atom is 1.

Therefore 77/15 moles will have a mass of

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3 0
3 years ago
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