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3 years ago

How will freezing the juice affect its mass?

Chemistry

1 answer:

expeople1 [14]3 years ago

8 0

Answer:

Mass increases since its going from liquid to solid.

Explanation:

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An oven that cooks by cycling warm air through the bottom and out the top which heat transfer

koban [17]

Answer:

This is an example of convection

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3 years ago

Bi-S is relatively more stable than bi-n bond. give reasons for the HSAB concept

Rus_ich [418]

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3 years ago

How do you know if a compound will dissociate or ionize in water?

Ivenika [448]

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4 0

3 years ago

What is the origin of the name for bismuth

Juliette [100K]

The name come from the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass.

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3 years ago

A 256 mL sample of HCl gas is in a flask where it exerts a force (pressure) of 67.5 mmHg. What is the pressure of the gas if it

Effectus [21]

Answer:

The pressure in the new flask would be $128\; \rm mmHg$ if the $\rm HCl$ here acts like an ideal gas.

Explanation:

Assume that the $\rm HCl$ sample here acts like an ideal gas. By Boyle's Law, the pressure $P$ of the gas should be inversely proportional to its volume $V$ .

For example, let the initial volume and pressure of the sample be $V_1$ and $P_1$ . The new volume $V_2$ and pressure $P_2$ of this sample shall satisfy the equation: $P_1 \cdot V_1 =P_2 \cdot V_2$ .

In this question,

The initial volume of the gas is $V_1= 256\; \rm mL$ .
The initial pressure of the gas is $P_1 = 67.5\; \rm mmHg$ .
The new volume of the gas is $V_2 = 135\; \rm mL$ .

The goal is to find the new pressure of this gas, $P_2$ .

Assume that this sample is indeed an ideal gas. Then the equation $P_1 \cdot V_1 =P_2 \cdot V_2$ should still hold. Rearrange the equation to separate the unknown, $P_2$ . Note: make sure that the units for $V_1$ and $V_2$ are the same before evaluating. That way, the unit of

$\begin{aligned} & P_2\\ &= \frac{P_1 \cdot V_1}{V_2} \\ &= \frac{256\; \rm mL \times 67.5\; \rm mmHg}{135\; \rm mL} \\ & \approx 128\; \rm mmHg\end{aligned}$ .

3 0

3 years ago