compare the three characteristics of the states of matter ( solid , liquid and gas)

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The percent yield in this experiment is calculated to be approximately 89.94%. This means that the actual yield obtained (31.2 g) is about 89.94% of the maximum possible yield (34.7 g) based on the stoichiometry of the reaction.

The percent yield of a chemical reaction can be calculated by dividing the actual yield by the theoretical yield, and then multiplying by 100. In this particular experiment, the theoretical yield is 34.7 g, and the actual yield is 31.2 g. To determine the percent yield, we can use the following formula:

Percent Yield = (Actual Yield / Theoretical Yield) x 100

The theoretical yield refers to the maximum amount of product that can be obtained based on stoichiometric calculations. It is calculated based on the balanced chemical equation and the amounts of reactants used. In this case, the theoretical yield is given as 34.7 g.

The actual yield, on the other hand, is the amount of product obtained in the laboratory experiment. It can be affected by various factors such as incomplete reactions, side reactions, or losses during the purification process. In this experiment, the actual yield is measured to be 31.2 g.

To calculate the percent yield, we divide the actual yield by the theoretical yield and multiply by 100. In this case:

Percent Yield = (31.2 g / 34.7 g) x 100 = 89.94%

The percent yield in this experiment is calculated to be approximately 89.94%. This means that the actual yield obtained (31.2 g) is about 89.94% of the maximum possible yield (34.7 g) based on the stoichiometry of the reaction. The percent yield is a measure of the efficiency of the reaction and can indicate the extent to which the reaction proceeds and the purity of the product obtained. In this case, a percent yield of 89.94% suggests a reasonably efficient reaction with a relatively high yield.

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Answer:

Increases

Explanation:

The general effect we see as temperature increases is that rate of dissolution of a solid solute increases,

Therefore, we can say that :

Temperature ∝ Rate of dissolution

Answer:

500N/m²

Explanation:

The Pressure can be calculated using the formula:

P = F/A

Where;

F = force (N)

A = Area (m²)

Based on the information provided in the question, F = 30N, A = 0.06m²

P = F/A

P = 30/0.06

P = 500N/m²

The ammonia molecules involved in your process. 2.39 g of ammonia will be produced by you.

given that :

No. of ammonia there: 8.41 × 10²⁴

molar mass of ammonia : 17 g /mol

no. of molecules = (mass / molar mass ) × Avogadro's number

8.41 × 10²⁴ = (mass / 17 ) × 6.022 × 10²³

mass = 17 / 7.1

mass = 2.39 g

Consequently, a reaction that will produce ammonia as a byproduct. You project that your process should produce 8.41 × 10²⁴ ammonia molecules. 2.39 grams of ammonia can be produced.

What does the chemical term "molecular" mean?

The most frequent uses of the term "molecular" are in biology and chemistry, and it invariably refers to the tiniest components of living things or substances. The name molecule, which meaning "very minute particle," is derived from the Latin word molecula, which means "small bulk."

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Answer: First we start with our molecular equation to ensure all atoms are balanced to maintain the law of conservation of mass.

.

The equation is unbalanced since we have 1 Cl atom on the left-hand side as opposed to 2 on the right-hand side and 2  molecules on the left-hand side and 1 on the right-hand side. So we add a coefficient of 2 on  both the  and

Explanation:

The reaction occurs between solutes soluble in water to give a solid as a residue. So the complete ionic equation will show the soluble compounds in their dissociated states as ions in water and the insoluble compound as a solid.

Answer:

The substances in a mixture can be separated using physical methods such as filtration, freezing, and distillation.

There is little, see Enthalpy of mixing, or no energy change when a mixture forms.

Mixtures have variable compositions, while compounds have a fixed, definite formula.

Explanation:

Answer:

0.56kg=?mg

0.56kg x (1000 g/1kg) X (1000mg/1g) = 560,000mg

Explanation:

You got it right. Great Job!

Answer:

B)Stabilizes the body

...........................

As we move across the periodic table from left to right, atoms become smaller due to the increasing number of protons in the nucleus, which attracts electrons more strongly and decreases the size of the electron cloud.

The size of an atom is determined by the distance between the outermost electrons and the nucleus. As we move across a period in the periodic table from left to right, the number of protons in the nucleus increases, and so does the positive charge of the nucleus.

This increase in positive charge attracts the electrons in the atom more strongly, causing the electron cloud to be pulled closer to the nucleus. As a result, the atomic radius, or the distance between the nucleus and the outermost electrons, becomes smaller.

Furthermore, the increase in the number of protons also leads to an increase in the number of electrons. However, these additional electrons are added to the same energy level, resulting in increased electron-electron repulsion and a smaller atomic radius.

This trend continues across the periodic table, resulting in a gradual decrease in atomic size from left to right.

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The moles would be 12 moles, 4 moles and 11.34 moles

When hydrogen gas (H2) reacts with oxygen gas (O2) to produce water (H2O), the balanced chemical equation is:

2H2 + O2 -> 2H2O

So,

For every 6 moles of H2, 12 moles of H2O will be produced

For every 2 moles of H2, 4 moles of H2O will be produced

For every 5.67 moles of H2, 11.34 moles of H2O will be produced.

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Modern chemical fertilizers include one or more of the three elements that are most important in plant nutrition: nitrogen, phosphorus, and potassium. Of secondary importance are the elements sulfur, magnesium, and calcium.

Answer: The most common useful element in fertilizer is mostly nitrogen since it is also found in air

Answer:

it is 0.24 M

Explanation

Find the molarity of all ions in a solution that contains 0.165 moles of aluminum chloride in 820. ml solution. " Answer: [Al 3+1= 0.201 M. (CI) = 0.603M. ... 2) Find the molartiy  of each ion present after mixing 27 ml of 0.25 M HNO3 with 36 ml of ... of each ion and the mass of any precipitate when a 0.300 mole of aluminum.

Answer:

3%

Explanation:

as error occurred is 1.5(error value) so 1.5 is 3%of 50(original value)

Answer:

Sodium is an alkali metal so it needs to lose an electron to fill it's outer shell.

That is an ion. When an element loses or gains an electron but in this case, sodium needs to lose an electron.

The effect of errors on the calculated concentration of CI is significant.

A 10.00 mL diluted chloride sample was titrated with 0.02749 M AgNO3, and 16.51 mL AgNO, was required to reach the endpoint. The effect of errors on the calculated concentration of CI can be explained as follows:a. The student read the molarity of AgNO, as 0.02479 M instead of 0.02749 M. If the student read the molarity of AgNO, as 0.02479 M instead of 0.02749 M, then the experimentally calculated moles of Ag would be too high. Consequently, the calculated [CI] in the unknown would come out too low. b.

The student was past the endpoint of the titration when the final buret reading was taken. If the student was past the endpoint of the titration when the final buret reading was taken, then the experimentally determined moles of Ag would be too low. This would cause the calculated C1 concentration to come out too high. Consequently, the calculated moles of CI would come out too high. Therefore, the effect of errors on the calculated concentration of CI is significant.

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The concentration of the sodium chloride solution is 0.00425 mol/L or 4.25 mM (millimolar).

To calculate the concentration of the solution, we need to determine the amount of solute (sodium chloride) per unit volume of solution.

We are given that 3 grams of sodium chloride are dissolved in enough water to make 12 liters.

First, we need to convert the mass of sodium chloride to moles:

- molar mass of NaCl = 58.44 g/mol

- moles of NaCl = mass/molar mass = 3 g / 58.44 g/mol

                          = 0.051 mol

Next, we need to calculate the concentration of the solution, which is expressed in units of moles per liter (mol/L):

- concentration = moles of solute / volume of solution

                         = 0.051 mol / 12 L

                         = 0.00425 mol/L

Therefore, the concentration of the sodium chloride solution is 0.00425 mol/L or 4.25 mM (millimolar).

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Answer:

Increasing atomic number

Explanation:

D

Answer:

non independantly

Explanation:

In any chemical reaction, the mass of the products must equal the mass of the reactants. The mass of product B is the same as the combined mass of Reactant A and H₂O.

Answer:

sh5barch shougi

Explanation:

When the oxidation number of an atom in a chemical species decreases during a chemical change, that species becomes reduced. In this case, the species is the reducing agent.

This is because a decrease in oxidation number indicates a gain of electrons by the atom, and it is the reducing agent that donates electrons to the oxidizing agent. Therefore, the reducing agent is oxidized (loses electrons) while the oxidizing agent is reduced (gains electrons) during the chemical reaction. This is because the reducing agent undergoes reduction by gaining electron(s), which causes its oxidation number to decrease.

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Answer:

natural flame,oxidising flame

The unusually high boiling point of water (H2O) is primarily due to the presence of hydrogen bonding between water molecules. This unique intermolecular force is responsible for the exceptional properties of water, including its high boiling point.

Hydrogen bonding occurs when the hydrogen atom in one water molecule is attracted to the oxygen atom in a neighboring water molecule. This attraction is a result of the large electronegativity difference between oxygen and hydrogen. Oxygen is highly electronegative, causing a partial negative charge (δ-) on the oxygen atom and a partial positive charge (δ+) on the hydrogen atoms.

As a result of hydrogen bonding, water molecules form a network of intermolecular attractions, leading to a higher amount of energy required to break these bonds and convert water from the liquid phase to the gas phase. The energy required to disrupt the hydrogen bonds and convert water into vapor manifests as a higher boiling point compared to other substances with similar molecular weights.

Additionally, the presence of hydrogen bonding also contributes to other properties of water, such as its high specific heat capacity, density anomalies, and surface tension, which are vital for the maintenance of life and various natural processes.

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Answer:

D. Communication of results

Answer:

b.

conclusion

because it gives the overall information about the experiment

Answer:

Explanation:

solid would be a wall e.g

liquid would be water e.g

gas would be oxygen e.g

The empirical formula of the compound isolated from oil of balsam is \(C4H6\), while the molecular formula is \(C8H12\).

To determine the empirical formula, we need to calculate the empirical formula mass and then divide the molecular mass by the empirical formula mass to find the ratio of atoms. From the given data, we can determine the masses of carbon and hydrogen in the compound.

The mass of carbon can be calculated by subtracting the mass of \(CO2\) obtained from the initial mass of the compound: 2.839 g - 0.9272 g = 1.9118 g. The mass of hydrogen can be determined by subtracting the mass of CO2 from the initial mass of the compound: 0.9272 g - 2.839 g = -1.9118 g.

Next, we convert the masses of carbon and hydrogen into moles using their respective molar masses. The molar mass of carbon is 12.01 g/mol, and the molar mass of hydrogen is 1.008 g/mol. The moles of carbon and hydrogen are calculated as follows:

Moles of carbon = 1.9118 g / 12.01 g/mol = 0.159 mol

Moles of hydrogen = 1.9118 g / 1.008 g/mol = 1.897 mol

To obtain the simplest ratio of carbon to hydrogen, we divide both values by the smallest number of moles, which is 0.159. The ratio is approximately 1:12, leading to the empirical formula .

To find the molecular formula, we need the molecular mass of the compound. From the given data, the molecular mass is 136.2 g/mol. By comparing the empirical formula mass (56.11 g/mol) to the molecular mass, we find that the molecular formula is a multiple of the empirical formula, specifically .

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Answer:

N/A

Explanation:

Is this a true or false answer or.....?

The concentration of sulfate ion would be required for Ca⁺ to begin to precipitate out as calcium sulfate is 7.10 * 10⁻⁴ M.

b) The concentration of the Ba²⁺ ion would be 9.929 * 10⁻² M

The precipitation of calcium sulfate occurs when the ionic product, Kip is greater than or equal to the solubility product, Ksp of calcium sulfate.

a) The equation of the dissociation of CaSO₄ is given below:

CaSO₄ ⇄ Ca²⁺ + SO₄²⁻

Ksp = [Ca²⁺] * [SO₄²⁻] = 7.10 * 10⁻⁵

Kip = [Ca²⁺] * [SO₄²⁻]

[SO₄²⁻] = Kip/[Ca²⁺]

[Ca²⁺] = 0.100 M

For precipitation to occur;

Kip = Ksp = 7.10 * 10⁻⁵

[SO₄²⁻] = 7.10 * 10⁻⁵/0.100

[SO₄²⁻] = 7.10 * 10⁻⁴ M

Therefore, the concentration of sulfate ion would be required for Ca⁺ to begin to precipitate out as calcium sulfate is 7.10 * 10⁻⁴ M.

b) The concentration of the Ba²⁺ ion would be;

0.100 M - 7.10 * 10⁻⁴ M = 9.929 * 10⁻² M

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