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3 years ago

From where do nuclear power plants get uranium?

Chemistry

1 answer:

Anvisha [2.4K]3 years ago

4 0

Answer:

Uranium mines operate in many countries, but more than 85% of uranium is produced in six countries: Kazakhstan, Canada, Australia, Namibia, Niger, and Russia. Historically, conventional mines open pit or underground were the main source of uranium.

Explanation:

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A solution containing 4.15 g of magnesium chloride is added to a second solution containing excess

AveGali [126]

Answer:

1. 5.24 g

2. 75.4%

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

MgCl₂ + Na₂SO₄ —> MgSO₄ + 2NaCl

Next, we shall determine the mass of MgCl₂ that reacted and the mass of MgSO₄ produced from the balanced equation. This can be obtained as follow:

Molar mass of MgCl₂ = 24 + (35.5×2)

= 24 + 71

= 95 g/mol

Mass of MgCl₂ from the balanced equation = 1 × 95 = 95 g

Molar mass of MgSO₄ = 24 + 32 + (16×4)

= 24 +32 + 64

= 120 g/mol

Mass of MgSO₄ from the balanced equation = 1 × 120 = 120 g

SUMMARY:

From the balanced equation above,

95 g of MgCl₂ reacted to produce 120 g of MgSO₄.

1. Determination of the ideal yield of magnesium sulfate, MgSO₄.

From the balanced equation above,

95 g of MgCl₂ reacted to produce 120 g of MgSO₄.

Therefore, 4.15 g of MgCl₂ will react to produce = (415 × 120)/95 = 5.24 g of MgSO₄.

Thus, the ideal yield of magnesium sulfate, MgSO₄ is 5.24 g

2. Determination of the percentage yield.

Actual yield of MgSO₄ = 3.95 g

Ideal yield of MgSO₄ = 5.24 g

Percentage yield =?

Percentage yield = Actual yield / Ideal yield × 100

Percentage yield = 3.95 / 5.24 × 100

Percentage yield = 395 / 5.24

Percentage yield of MgSO₄ = 75.4%

7 0

3 years ago

Calculate the molarity when 1.24 g AgNO3 is dissolved to make 125 mL solution. Round to two significant digits.

Goshia [24]

Answer:

Molarity=0.0058M

Explanation:

Given the weight of AgN $O_{3}$ is(w) 1.24g

We know that the molecular weight of AgN $O_{3}$ is(W) 169.87g/mol.

Given the volume of the solution is(V) 125ml.

Here solute is silver nitrate and the solvent is water.

We know that

$Molarity=\frac{number of moles of solute}{total volume of the solution int litres}$

We know that number of moles=weight/molecular weight

$n= \frac{1.24}{169.87}$ = $7.3*10^{-3}$

volume of the solution(V)=125/1000=0.125L

Now

Molarity=n/V

M= $\frac{7.3*10^{-3} }{0.125}$ =0.00584M

4 0

3 years ago

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A glass of cold milk sometimes forms a coat of water on the outside of the glass (often referred to as ‘sweat'). how does most o

PolarNik [594]

It is from condensation from the air where the glass of cold milk is.

4 0

3 years ago

Trình bày sự hình thành phân tử CCl4 (lai hoá sp3)

Anna35 [415]

Gucgjfgdjgcycc fh(xsjfhghjkm

8 0

3 years ago

What is another name for a homogeneous mixture?

statuscvo [17]

The answer is a solution im pretty sure <3

4 0

4 years ago