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2 years ago

What is the mole ratio that can convert from moles of A to moles of B?

1 answer:

8 0

There is no direct way to convert from the mass of one substance to the mass of another. To convert from one mass (substance A) to another mass (substance B), you must convert the mass of A first to moles, then use the mole-to-mole conversion factor (B/A), then convert the mole amount of B back to grams of B.

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The solubility of o2 at 20c is 1.38 x10^-3. the partial presure of o2 in the air at sea level is 0.27 atm. using henery;s law, c

netineya [11]

Answer: The solubility of oxygen at 682 torr is $4.58\times 10^{-3}M$

Explanation:

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{A}=K_H\times p_{A}$

Or,

$\frac{C_{1}}{C_{2}}=\frac{p_{1}}{p_2}$

where,

$C_1\text{ and }p_1$ are the initial concentration and partial pressure of oxygen gas

$C_2\text{ and }p_2$ are the final concentration and partial pressure of oxygen gas

We are given:

Conversion factor used: 1 atm = 760 torr

$C_1=1.38\times 10^{-3}M\\p_1=0.27atm\\C_2=?\\p_2=682torr=0.897atm$

Putting values in above equation, we get:

$\frac{1.38\times 10^{-3}}{C_2}=\frac{0.27atm}{0.897atm}\\\\C_2=\frac{1.38\times 10^{-3}\times 0.897atm}{0.27atm}=4.58\times 10^{-3}M$

Hence, the solubility of oxygen gas at 628 torr is $4.58\times 10^{-3}M$

4 0

2 years ago

C2H5OH(g) + 302(g) → 2CO2(g) + 3H2O(g) + heat reaction type

Tcecarenko [31]

Answer:

Combustion

Explanation:

The reaction type is a combustion reaction;

Ethanol + oxygen gas → carbon dioxide + water

Now;

Ethanol is the fuel and oxygen gas rapidly combines with it to form carbon dioxide and water.

This process releases heat energy from chemical bonds.
Most hydrocarbons burn in excess air or oxygen to give carbon dioxide and water.

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2 years ago

How could an alpha particle pass straight through the metal foil and strike the center of the phosphor screen on the other side

EleoNora [17]

It was due to the metal foil in which the alpha particles can't even pass through. This experiment conducted by Rutherford led to the discovery of protons.

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2 years ago

Which of these is not a mixture

NikAS [45]

A.) baking soda is the answer

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Chemistrys forerunners

oksian1 [2.3K]

Answer:

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