At 19 °C, the vapor pressure of pure ethanol is 40.0 mmHg. What is the pressure in atm? atm

Chemistry

1 answer:

m_a_m_a [10]2 years ago

5 0

Answer:

0.05263158 atm

Explanation: mmHg to Atmosphere Conversion Example. Task: Convert 975 mmHg to atmospheres (show work) Formula: mmHg ÷ 760 = atm Calculations: 975 mmHg ÷ 760 = 1.28289474 atm Result: 975 mmHg is equal to 1.28289474 atm. This is an example for how i got the answer.

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2Ag + S --> Ag2S would be classified as a(n) _____________ reaction.

yaroslaw [1]

Answer:

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3 years ago

What would be the final temperature of a 73.174g sample

madreJ [45]

The final temperature is -138 °C.

Explanation:

Using the equation of specific heat

$Q = m*c* del T$

We can easily find the final temperature of a 73.174 g of copper sample. As we know that specific heat is the amount of energy required to raise the temperature of the object to 1°C.

The specific heat of copper is known as 0.387 J/g°C and the initial temperature is said as 102 °C . The mass is given as 73.174 g. The heat released is 6800 J.

Since the heat is released the Q value will be negative.

$-6800=0.387*73.174*(T_{final}-102)$

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Thus, the final temperature is -138 °C.

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3 years ago

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Mamont248 [21]

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<h3>Chemical reactions</h3>

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