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2 years ago

3. Describe short-term factors that could influence yearly data within this system

Chemistry

1 answer:

topjm [15]2 years ago

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Use both of them to get you thing that you need

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Explain why there would be an environmental problem if sulfur dioxide gas escaped into the atmosphere

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3 years ago

If the container is closed and the ethanol is allowed to reach equilibrium with its vapor, how many grams of liquid ethanol rema

SVETLANKA909090 [29]

Explanation:

Let us assume that the given data is as follows.

V = 3.10 L, T = $19^{o}C$ = (19 + 273)K = 292 K

P = 40 torr (1 atm = 760 torr)

So, P = $\frac{40 torr}{760 torr} \times 1 atm$

= 0.053 atm

n = ?

According to the ideal gas equation, PV = nRT.

Putting the given values into the above equation to calculate the value of n as follows.

PV = nRT

$0.053 atm \times 3.10 L = n \times 0.0821 L atm/mol K \times 292 K$

0.1643 = $n \times 23.97$

n = $6.85 \times 10^{-3}$

It is known that molar mass of ethanol is 46 g/mol. Hence, calculate its mass as follows.

No. of moles = $\frac{mass}{\text{molar mass}}$

$6.85 \times 10^{-3} = \frac{mass}{46 g/mol}$

mass = $315.1 \times 10^{-3}$ g

= 0.315 g

Thus, we can conclude that the mass of liquid ethanol is 0.315 g.

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2 years ago

What is the energy transferred by a force to a moving object?

eimsori [14]

Answer: The energy transferred is known as kinetic energy, and it depends on the mass and speed achieved.

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2 years ago

When a ball is rolling down a hill, what forces are acting on the ball? Why does it speed up?

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Answer:gravity

Explanation:

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3 years ago

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