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3 years ago

How does increasing the temperature of a liquid below the boiling point affect

1 answer:

4 0

When the particles of a substance (usually a liquid) is heated up, its particles absorb the energy provided thereby increasing their kinetic energy resulting to more movement of the individual particles.

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Methane (CH4) reacts with Cl2 to yield CCl4 and HCl by the following reaction equation: CH4 + 4 Cl2 → CCl4 + 4HCl. What is the Δ

Vlad1618 [11]

Answer: The ΔH of the reaction if 51.3 g of $CH_4$ reacts with excess $Cl_2$ to yield 1387.6 kJ is 432.27kJ

Explanation:

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}$

moles of $CH_4$

$\text{Number of moles of methane}=\frac{51.3g}{16g/mol}=3.21moles$

$CH_4+4Cl_2\rightarrow CCl_4+4HCl$ $\Delta H=?$

As $Cl_2$ is present in excess, $CH_4$ is the limiting reagent as it limits the formation of product.

If 3.21 moles of methane releases heat = 1387.6 kJ

Thus 1 mole of methane release= $\frac{1387.6}{3.21}\times 1=432.27kJ$

4 0

3 years ago

30 mL of 0.25 M acetic acid are titrated with 0.05 M KOH. What is the pH after addition of 75 mL KOH? Group of answer choices

hjlf

Answer:

The PH of the mixture is 4.74

Explanation:

The number of millimoles of acetic acid is calculated using the formula:

No of millimoles= Molarity * Volume( in ml)

= 0.25M * 30ml = 7.5 moles

Number of millimoles of KOH is calculated using:

Number of millimoles = Molarity * Volume ( in ml)

=0.05M * 75ml

= 3.75 moles

The PH of the solution is derived using:

pH = pKa + log [salt] / acid

= $-log [ 1.8 * 10^5 ] + log [ 3.75 mmoles/ 3.75 mmoles]$

=4.74

5 0

4 years ago

Ulysses was working with glassware in the laboratory and accidentally dropped a beaker. He first notified his teacher, put on gl

Alenkasestr [34]

<u>Answer:</u>

He should have put the glass in a broken glass bin

<u>Explanation:</u>

Putting broken glasses in the trash can or the dust bin can be hazardous to the workers working at local recycling center as the pieces might hurt them. Instead, he should have thrown the broken beaker in a separate glass bin or should have wrapped properly in paper so that it won't hurt anyone.

Also, glasses have a high melting point and therefore it is not recyclable. Hence, it should be trashed separately.

3 0

3 years ago

Read 2 more answers

Logging is a cause of nonpoint source pollution how does the removal of trees affect our fresh water supply

satela [25.4K]

Logging may cause the soil to be less compact and the loose dirt will enter and contaminate any water source.

Have a nice day!

8 0

4 years ago

Read 2 more answers

Draw the reactants using the drawing tool. Keep in mind that one molecule of nitrogen has two bonded atoms, and one molecule of

ANTONII [103]

The formation of ammonia gas involves reacting hydrogen gas and nitrogen gas in a mole ratio of 3 to 1. as shown below:

$N_2 + 3H_2 \rightarrow 2NH_3$

<h3>What is the equation of the formation of ammonia?</h3>

Ammonia gas is formed from the reaction between nitrogen gas and hydrogen gas.

Three moles of hydrogen gas will react with 1 mole of nitrogen gas to form 2 moles of ammonia gas.

The equation of the reaction is given below as:

$N_2 + 3H_2 \rightarrow 2NH_3$

Therefore, the formation of ammonia gas involves reacting hydrogen gas and nitrogen gas in a mole ratio of 3 to 1.

Learn more about ammonia gas at: brainly.com/question/7982628

5 0

2 years ago