how many grams of silver chromate will precipitate when 150 ml of 0.500 M silver nitrate are added to 100 mL of 0.400 M potassium chromate

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Answer 1

Answer:

Final answer:

When 150 ml of 0.500 M silver nitrate are added to 100 mL of 0.400 M potassium chromate, a silver chromate precipitate forms. Considering the stoichiometry of the reaction and the quantities of reactants, 24.88 grams of silver chromate will precipitate.

Explanation:

The subject of this question is based on precipitation reactions in Chemistry. Precipitation reactions occur when two solutions combine to form an insoluble solid known as a precipitate. The moles of silver nitrate present in a 150 mL of 0.500 M solution can be calculated using the formula Molarity = Moles ÷ Volume (in Litres).

Thus, Moles of AgNO3 = 0.500 M * 0.15 L = 0.075 mol AgNO3. According to the reaction equation 2AgNO3 + K2CrO4 → 2AgCrO4(precipitate) + 2KNO3, for every mole of K2CrO4, we have two moles of AgNO3. Thus, based on stoichiometry and the given quantities of the reactants, the limiting reactant will be AgNO3, and it will totally react and form the silver chromate precipitate. The moles of Ag2CrO4 formed would therefore also be 0.075 mol. To convert this into grams, we use the molar mass of Ag2CrO4, which is approximately 331.73 g/mol. Hence, grams of Ag2CrO4 = 0.075 mol Ag2CrO4 * 331.73 g/mol = 24.88 g Ag2CrO4.

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Answer: Titration

Explanation: Titration is defined as the process where a solution of known concentration is used to determine the concentration of an unknown solution.

Volumetric titrations are usually used for neutralization reactions where an indicator is used to know the acidic or basic nature of solution.

The normality equation used at a point where neutralization occurs during the titration is:

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$N_1$ = Normality of acid solution

$V_1$ = volume of acid solution

$N_2$ = Normality of basic solution

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Answer:

The order and arrangement of the planets and other bodies in our solar system is due to the way the solar system formed. Nearest the Sun, only rocky material could withstand the heat when the solar system was young. For this reason, the first four planets—Mercury, Venus, Earth and Mars—are terrestrial planets.

Explanation:

Why is large scale nuclear fission a rare phenomenon on earth ?

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Answer:

The correct answer is option C.

Explanation:

The radioisotopes in the Earth's interior are not in pure form and exhibit various entrenched impurities and are interspersed. Thus, when a neutron is discharged by a decaying atom, its occurrences of hitting another atom of radioisotope in order to continue the chain reaction becomes lower in comparison to the man-made nuclear reactor. In this manner, the radioactive chain reaction in the interior of the Earth is not well-sustained.

Answer: C

Explanation:

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What are the charges on the elements?

The charge is negative or positive or neutral charges present on the substance or molecule. The charges are produced by the gaining or losing of electrons.

The charges tell the tendency of the atom or molecule of gaining or losing of the atom.

Thus, the correct option is 3, +8.

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+ 8

the oxygen has 8 protons and 8 neutrons in your nucleus

hope this helps!

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Answers

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