CHEMISTRY HIGH SCHOOL

A solution of KCIO3 is prepared using 75 grams of the solute in enough water to make 0.250 liters of solution. The gram-formula mass of KCIO3 is 122 grams per mole.-- Determine the percent by mass of solute in the solution.

Answers

Answer 1
Answer:

The mass percent of the solute present is 99.7%.

What is mass percent?

The term mass percent refers to the ratio of the mass of solute to the mass of the solution multiplied by 100.

We have the following information;

volume of the water = 0.250 liters

Mass of the water = 0.250 g

Mass of the solute = 75 grams

Mas of solute and  solvent = 0.250 g + 75 grams = 75.250 g

Mass percent of the solute = 75 grams /75.250 g * 100 = 99.7%

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Answer 2
Answer: Using the mass/volume percentage method for percentages of the solution, you simply divide the grams of solute by the volume of the solution and multiply by 100 to get your percentage.
(75.0g/250mL)•100 = 30.0% solute

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Which of the following is not an example of chemical weathering?a. the oxidation of iron
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Answers

D. is not chemical weathering.
We know this because when iron oxides, it is reacting with oxygen in the air, with is therefore a chemical change.
When clay forms, it's from the chemical deposition of rocks like granite, which makes it a type of chemical weathering.
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The answer is D i just took the test and got it correct!

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Answers

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How does an ion differ from an atom?

Answers

An atom is the smallest particle of an element that retains the chemical properties of the element. Atoms are electrically neutral, with a positively charged nucleus that binds one or more electrons in motion around it.An ion-An atom or molecule that has acquired a charge by either gaining or losing electrons. An atom or molecule with missing electrons has a net positive charge and is called a cation*; one with extra electrons has a net negative charge and is called an anion*.

Final answer:

An ion differs from an atom in that it has a net electrical charge, either positive or negative, due to the loss or gain of electrons.

Explanation:

An ion differs from an atom in that it has a net electrical charge. This charge is either positive or negative, resulting from the loss or gain of electrons by the atom. When an atom loses electrons, it becomes positively charged and forms a cation. On the other hand, when an atom gains electrons, it becomes negatively charged and forms an anion.

For example, let's consider sodium (Na) and chloride (Cl) atoms. Sodium has 11 protons and 11 electrons, making it neutral. However, when it loses an electron, it becomes a sodium ion (Na+), which now has 11 protons and 10 electrons, giving it a +1 charge. Chloride, on the other hand, has 17 protons and 17 electrons, making it neutral. But when it gains an electron, it becomes a chloride ion (Cl-), which now has 17 protons and 18 electrons, giving it a -1 charge.

So, while an atom is electrically neutral, an ion has a charge due to the loss or gain of electrons.

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Helppp please help.

Answers

the answer is B
im pretty sure measure wherever the bottom of the curved line is :)

Which statement best describes why carbon can form a wide variety of organic compounds?Each carbon atom ionically bonds with atoms of carbon, hydrogen, oxygen, and nitrogen.

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Answers

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