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jeka94
3 years ago
7

2. If 1.75 L of a gas is at 700. K and is under 250. kPa of pressure, what will the new

Chemistry
1 answer:
Andrews [41]3 years ago
3 0

Answer:

Final volume is 3.50L

Explanation:

It is possible to find volume of a gas using combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

<em>Where P is pressure, V is volume and T is temperature of 1: initial state and 2: final state</em>

If initial state of the gas is:

1.75L of a gas is at 700K and is under 250kPa of pressure

And final state is:

298K and 53.2kPa.

Replacing:

\frac{250kPa*1.75L}{700K} =\frac{53.2kPa*V_2}{298K}

0.625L = 0.1785*V₂

<em>3.50L = V₂</em>

Thus, <em>final volume is 3.50L</em>

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Convert .14 kilograms to grams
Elodia [21]

Answer:

140 grams

Explanation:

.14 kilograms to grams is <em>140</em><em> </em><em>grams</em><em> </em>

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4 0
3 years ago
When a solution of sodium hydroxide is mixed with iron (II) chloride, a green precipitate is formed. What is the balanced equati
marshall27 [118]

The balanced chemical equation for the reaction is:

2NaOH(aq) + FeCl₂(aq) --> 2NaCl(aq) + Fe(OH)₂(s)

<h3>What is a chemical equation? </h3>

Chemical equations are representations of chemical reactions using symbols and formula of the reactants and products.

The reactants are located on the left side while the products are located on the right side.

Reactants —> Products

The balancing of chemical equations follows the law of conservation of matter which states that matter can neither be created nor destroyed during a chemical reaction but can be transferred from one form to another.

<h3>How to write the balanced equation </h3>

Sodium hydroxide => NaOH

Iron (II) chloride => FeCl₂

2NaOH(aq) + FeCl₂(aq) --> 2NaCl(aq) + Fe(OH)₂(s)

Learn more about chemical equation:

brainly.com/question/7181548

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5 0
2 years ago
A block of metal has a mass of 51.11 g and displaces 71.46 ml of water. Calculate the density of the metal in g/ml.
Damm [24]

Answer:

The answer is

<h2>0.07 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of metal = 5.11 g

volume = 71.46 mL

The density of the metal is

density =  \frac{5.11}{71.46}  \\  = 0.071508536...

We have the final answer as

<h3>0.07 g/mL</h3>

Hope this helps you

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Anettt [7]
A. Bin 3 
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<span>C. Bin 3. If the gases are at the same temperature, they have the same average kinetic energy. </span>
<span>D. Bin 1. Nitrogen has a greater average velocity since it is a lighter gas.</span>
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3 years ago
1.) How can people reduce their exposure to BPA?
MakcuM [25]
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