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jasenka [17]
2 years ago
7

Please help me with this.And show all work as well ASAP!!​

Chemistry
1 answer:
qaws [65]2 years ago
6 0

Answer: The partial pressure of oxygen is 187 torr.

Explanation:

According to Raoult's law, the partial pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the total pressure.

p_1=x_1p_{total}  

where, x = mole fraction  

p_{total} = total pressure  

x_{oxygen}=\frac{\text {moles of oxygen}}{\text {total moles}},  

x_{oxygen}=\frac{3.0}{12.33}=0.243,  

p_{oxygen}=0.243\times 770torr=187torr  

Thus the partial pressure of oxygen is 187 torr.

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an acid based titration was performed. it took 27.45 mL of the base, KOH, to titrate 3.115 g HBr, the acid. what was the molarit
sveticcg [70]

Answer:

<u>1.4 M</u>

Explanation:

n(HBr)=3.115/81

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2 years ago
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