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2 years ago

State which separation method you would use to separate potassium iodine solution

Chemistry

1 answer:

navik [9.2K]2 years ago

3 0

Could be separated by distillation.

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3. Find the mass of 4.77 x 1022 atoms of scandium<br> (Sc).

iren2701 [21]

Answer:

Mass = 3.6 g

Explanation:

Given data:

Number of atoms of scandium = 4.77×10²² atoms

Mass of arsenic = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022× 10²³ is called Avogadro number.

one mole = 6.02×10²³ atoms

one mole × 4.77×10²² atoms / 6.02×10²³ atoms

0.08 mol

Mass of scandium

Mass = number of moles × molar mass

Mass = 0.08 mol × 45 g/mol

Mass = 3.6 g

7 0

3 years ago

Which of the following is the balanced equation for the

NNADVOKAT [17]

A.) is the answer =)

6 0

3 years ago

A gas at 400 k is placed in a 4.0 l moveable piston. The gas is cooled to 252 k. What is the new volume of the piston?

katrin [286]

Answer:

2.52L

Explanation:

Given parameters:

T₁ = 400K

V₁ = 4L

T₂ = 252K

unknown

V₂ = ?

Solution:

To solve this problem, we are going to apply charle's law. The law states that the volume of a fixed mass of gas is directly proportional to temperature provided pressure is constant.

Mathematically,

$\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }$

Substitute and solve for V₂

$\frac{4}{400} = \frac{V_{2} }{252}$

V₂ = 2.52L

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3 years ago

Which base has the lowest ionization constant (Kb)?

inysia [295]

Answer:D.Blood

Explanation:

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3 years ago

Is C3HNO an organic molecule

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Answer:

Yes.

Explanation:

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3 years ago

State which separation method you would use to separate potassium iodine solution​

State which separation method you would use to separate potassium iodine solution