what concentration of so2−3 is in equilibrium with ag2so3(s) and 2.80×10−3 m ag ? the sp of ag2so3 can be found in this table.

Answer:

False.

Explanation:

The atomic number is equal to the number of Protons found in an atom.

Answer:

Explanation:

- Atomic number is equal to the protons

- Protons are equal to electrons.

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Kavitha Banarjee

Answer:

The direction of prevailing winds determines which type of air mass generally moves over an area. For illustration, a west wind might bring warm wettish air from over an ocean. An east wind might bring cold dry air from over a mountain range. Which wind prevails has a big effect on the climate

Prevailing winds are the result of atmospheric rotation cells. They impact the climate of a region.

Rising and sinking air can impact the rush of a region.

Atmospheric rotation cells produce the general climate of a region.

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Brewing tea in water is an example of solid-liquid extraction. Solid-liquid extraction is a method of separating a solid solute from a liquid solvent by dissolving the solute in the solvent.

The solute can be separated from the mixture by various methods such as filtration, sedimentation, and centrifugation.In this process, the tea leaves or the tea bag are the solid solute that is extracted using water, which is the liquid solvent.

As the tea leaves or tea bag are added to the hot water, the soluble components like caffeine, flavonoids, and other compounds dissolve in the water. The insoluble components like cellulose and other plant fibers remain behind. The tea extract can then be separated from the tea leaves or tea bag by filtration.

This method is widely used in the extraction of natural products like plant extracts, flavors, and fragrances, and is commonly used in the food and beverage industry.This answer should be around 100 words, and for a more detailed answer, you can add examples of the equipment and procedures used for solid-liquid extraction or the difference between solid-liquid and liquid-liquid extraction.

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The pH of the solution is approximately 10.66.

A solution is made from 0.24M CH3NH2, a weak base, and 0.23M CH3NH3Cl, its conjugate acid. To find the pH of the solution, we can use the Henderson-Hasselbalch equation:
pH = pKa + log ([base]/[conjugate acid])
First, we need to find the pKa. Since we have the Kb for CH3NH2 (4.4 * 10^-4), we can use the relationship between Ka and Kb:
Ka * Kb = Kw = 1 * 10^-14
Now, find the Ka:
Ka = (1 * 10^-14) / (4.4 * 10^-4) = 2.27 * 10^-11
Next, find the pKa:
pKa = -log(Ka) = -log(2.27 * 10^-11) ≈ 10.64
Now, we can use the Henderson-Hasselbalch equation:
pH = 10.64 + log ([CH3NH2]/[CH3NH3Cl]) = 10.64 + log (0.24/0.23)
pH ≈ 10.64 + 0.02 ≈ 10.66

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If ADP (two phosphates) were hydrolyzed to AMP, how would you expect this reaction to compare with the hydrolysis of ATP to AMP?

ADP and ATP are both hydrolyzed to give AMP, the only difference remains in the side product formed which is pyrophosphate for ATP hydrolysis and inorganic phosphate for ADP hydrolysis.

What is ATP hydrolysis?

Adenosine triphosphate (ATP) contains highly energetic phosphoanhydride bonds that, when broken, such as occurs in muscles, release chemical energy through a catabolic reaction process called ATP hydrolysis. Adenosine diphosphate (ADP) and an inorganic phosphate are the end result (Pi). Adenosine monophosphate (AMP), energy, and another inorganic phosphate can all be produced by further hydrolyzing ADP (Pi). The final step in the energy chain from food or sunlight to useful work like muscle contraction, the creation of electrochemical gradients across membranes, and life-sustaining biosynthetic processes is ATP hydrolysis.

ATP + H 2 O → AMP + Pyrophosphate(PP)ADP + H 2 O → AMP + Inorganic Phosphate(Pi)

Thus, ADP and ATP are both hydrolyzed to give AMP, the only difference remains in the side product formed which is pyrophosphate for ATP hydrolysis and inorganic phosphate for ADP hydrolysis.

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Answer:

CH3CH2CH2CH3

Explanation:

The boiling point of a compound depends on the nature of intermolecular interaction between the molecules of the compound.

If a molecule is nonpolar and has a low molecular mass, then its molecules are most likely held together only by weak intermolecular bonds such as dispersion forces. These forces are easily broken and the molecules move apart hence the molecule possess a low boiling point.

Polar molecules and molecules having higher molecular mass tend to have higher boiling points.

Among all the compounds listed, CH3CH2CH2CH3 is non polar and has the lowest molecular mass hence it exhibits the least boiling point.

1a. The empirical formula of the compound is Fe₂O₃

1b. The molecular formula of the compound is Fe₂O₃

2a. The molecular formula of the anhydrous salt is MgSO₄

2b. The formula of the crystalline salt is MgSO₄.7H₂O

3i. The number of mole of carbon atoms in the compound is 6 moles

3ii. The number of mole of hydrogen atoms in the compound is 18 moles

3iii. The number of molecules in 3 moles of ethane is 1.806×10²⁴ molecules

Divide by their molar mass

Fe = 69.9 / 56 = 1.248

O = 30 / 16 = 1.875

Divide by the smallest

Fe = 1.248 / 1.248 = 1

O = 1.875 / 1.248 = 3/2

Multiply by 2 to express in whole number

Fe = 1 × 2 = 2

O = 3/2 × 2 = 3

Thus, the empirical formula of the compound is Fe₂O₃

Molecular formula = empirical × n = molar mass

[Fe₂O₃]n = 159.89

[(56×2) + (16×3)]n = 159.89

160n = 159.89

n = 159.89 / 160

n = 1

Molecular formula = [Fe₂O₃]n

Molecular formula = [Fe₂O₃] × 1

Molecular formula = Fe₂O₃

We'll begin by calculating the empirical formula

Divide by their molar mass

Mg = 20.0 / 24 = 0.83

S = 26.66 / 32 = 0.83

O = 53.33 / 16 = 3.33

Divide by the smallest

Mg = 0.83 / 0.83 = 1

S = 0.83 / 0.83 = 1

O = 3.33 / 0.83 = 4

Thus, the empirical formula of the anhydrous salt is MgSO₄

The molecular formula of the anhydrous salt can be obtained as follow:

Molecular formula = empirical × n = molar mass

[MgSO₄]n = 120

[24 + 32 + (16×4)]n = 159.89

120n = 120

n = 120 / 120

n = 1

Molecular formula = [MgSO₄]n

Molecular formula = [MgSO₄] × 1

Molecular formula = MgSO₄

Divide by their molar mass

MgSO₄ = 48.8 / 120 = 0.4

H₂O = 51.2 / 18 = 2.8

Divide by the smallest

MgSO₄ = 0.4 / 0.4 = 1

H₂O = 2.8 / 0.4 = 7

Thus, the formula of the crystalline salt is MgSO₄.7H₂O

1 mole of C₂H₆ contains 2 moles of carbon atoms.

Therefore,

3 moles of C₂H₆ will contain = 3 × 2 = 6 moles of carbon atoms

1 mole of C₂H₆ contains 6 moles of hydrogen atoms.

Therefore,

3 moles of C₂H₆ will contain = 3 × 6 = 18 moles of hydrogen atoms

From Avogadro's hypothesis,

1 mole of ethane = 6.02×10²³ molecules

Therefore,

3 moles of ethane = 3 × 6.02×10²³ molecules

3 moles of ethane = 1.806×10²⁴ molecules

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Complete question

2. A crystalline salt when heated becomes anhydrous and loses 51.2% of its weight the anhydrous salt analysis gave the percent composition as magnesium is equal to 20.0% and sulphur is equal to 26.66% and oxygen is equal to 53.33%. Ccalculate the molecular formula of the anhydrous and the crystalline salt. The molecular weight of the anhydrous salt is 120

Answer:

Whether a solution is acidic or basic can be measured on the pH scale. When universal indicator is added to a solution, the color change can indicate the approximate pH of the solution. Acids cause universal indicator solution to change from green toward red. ... Acidic solutions have a pH below 7 on the pH scale.

Explanation:

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Answer:

two

Explanation:

There are two atoms in 2 Fe, more correctly written as 2Fe or Fe2. Both atoms are from the same element, iron.

Answer:

2

Explanation:

There are two atoms of the same element in 2Fe.

Hope this helps! :)

Answer:0

Explanation: zero because it is the most stable form of oxygen in its standard state

The orbital period of the asteroid, carried out to 4 significant digits, is approximately 1652.0 years.

To find the orbital period (P) of an asteroid with a given semi-major axis (a), we can use Kepler's third law:

a³ = P²

Given that the semi-major axis (a) is 73.4 AU, we can substitute this value into the equation and solve for the orbital period (P):

(73.4 AU)³ = P²

(73.4)³ AU³ = P²

P² = (73.4)³ AU³

Taking the square root of both sides:

P = sqrt((73.4)³) AU

Using a calculator to evaluate the expression, we find:

P ≈ 1652.0 AU

Therefore, the orbital period of the asteroid, carried out to 4 significant digits, is approximately 1652.0 years.

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Answer:

1 melting

2

3 evaporationa

4 freezing point

The phase of the following are:

1. Melting.

2. Condensation.

3. Evaporation

4. Freezing point.

When any substance change from solid state to liquid state, it is called melting.

Ice change into water is an example.

Condensation is a process in which the air is cool down and convert into liquid from, like dew.

Water drops outside cold water bottle is an example.

Evaporation is the opposite of condensation, in which the liquid become so hot that it change into gaseous form.

Water turns into vapor in hot temperature.

Freezing point is when liquid is converted into solid.

Water converted into ice in fridge is an example.

Thus, The phase of the following are:1. Melting., 2. Condensation., 3. Evaporation., 4. Freezing point.

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The volume of carbon dioxide produced when 10.0 L of oxygen is consumed is 6.67 L of CO2 (rounded to two decimal places).

Given balanced equation: C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g)The molar volume of all gases at standard temperature and pressure is 22.4 L/mol.Using the balanced equation, we can find the ratio of the volume of oxygen used to carbon dioxide produced.C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g)3 moles of O2 produce 2 moles of CO2So, 1 mole of O2 produces (2/3) moles of CO2 or 1 mole of CO2 produces (3/2) moles of O2.

To find the volume of carbon dioxide produced when 10.0 L of oxygen is consumed, we need to use the mole ratio:3 mol O2 → 2 mol CO22/3 mol CO2 is produced by 3 mol O210.0 L of O2 is consumed, which is equal to 10.0/22.4 = 0.4464 moles of O2Thus, using the mole ratio:0.4464 mol O2 × (2/3) mol CO2/1 mol O2 = 0.2976 mol CO2The volume of 0.2976 mol CO2 is:0.2976 mol CO2 × 22.4 L/mol = 6.67 L of CO2 (rounded to two decimal places).

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The mass of \(5.83 * 10^{17\) molecules of liquid propane is \(4.27 * 10^-5 g.\)

The mass of \(5.83 * 10^{17\)molecules of liquid propane (LP gas) can be calculated as follows.

The given quantity is the number of molecules. We need to calculate the mass of this given number of molecules. The molar mass of LP gas (\(C_3H_8\)) is 44.11 g/mol.

To calculate the mass of 1 molecule of LP gas (\(C_3H_8\)), we can use the molar mass of LP gas as follows:molar mass of LP gas (\(C_3H_8\)) = 44.11 g/molNumber of molecules present in 1 mol of\(C_3H_8\) = Avogadro's number = 6.022 × 10²³

Number of molecules present in 44.11 g of \(C_3H_8\) = 6.022 × 10²³So, the mass of 1 molecule of\(C_3H_8\) can be calculated as follows:

44.11 g of \(C_3H_8\) = 6.022 × 10²³ molecules1 g of\(C_3H_8\) = (6.022 × 10²³)/44.11 molecules

Mass of 1 molecule of \(C_3H_8\) = (1/6.022 × 10²³) × 44.11 g = 7.33 × \(10^{-23\)g

Now, the mass of 5.83 × 10^17 molecules of C3H8 can be calculated as follows:

mass of \(5.83 * 10^{17\) molecules = \(5.83 * 10^{17\)) × (7.33 × \(10^{-23\)) g= 4.27 ×\(10^{-5\) g

Therefore, the mass of\(5.83 * 10^{17\)molecules of liquid propane is \(4.27 * 10^-5 g.\)

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Answer:

Pasteurization involves heating liquids at high temperatures for short amounts of time. Pasteurization kills harmful microbes in milk without affecting the taste or nutritional value (sterilization= all bacteria are destroyed).

Explanation:

Answer:

Explanation:

First, calculate the molar mass of NH4SO2. The molar mass can determine the number of moles. Then use Avogadro's number to calculate the number of molecules.

Key Steps:

Step 1. Calculate the molar mass of your compound

Step 2. Divide 2.3 grams by the molar mass of NH4SO2, this gives us moles

Step 3. Multiply by Avogadro's number (6.02x10^23) this gives you molecules.

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 1.68×10²²molecules are there in 2.3 grams of (NH\(_4\))\(_2\)SO\(_4\).

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. It measure the number of elementary entities of a given substance that are present in a given sample. There are so many formula for calculating mole. we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

moles of (NH\(_4\))\(_2\)SO\(_4\)= 2.3 grams ÷82.10g/mol

                                =0.028moles

number of atoms/molecules=number of moles × 6.022×10²³(Avogadro number)

number of atoms/molecules of (NH\(_4\))\(_2\)SO\(_4\)=0.028 × 6.022×10²³

                                                                     =1.68×10²²molecules

Therefore, 1.68×10²²molecules are there in 2.3 grams of (NH\(_4\))\(_2\)SO\(_4\).

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Answer:

The nuclide produced in the decay process of ¹¹C is:

b. ¹¹N

Explanation:

In the decay process of ¹¹C, the nuclide produced is ¹¹N (nitrogen-11). Carbon-11 undergoes beta-plus decay, also known as positron emission, where a proton inside the nucleus is transformed into a neutron while emitting a positron. This transformation changes the atomic number of the nucleus, resulting in the formation of nitrogen-11, which has one more neutron and one less proton compared to carbon-11. Nitrogen-11 is a radioactive isotope commonly used in positron emission tomography (PET) diagnostic equipment due to its short half-life and ability to emit positrons, which can be detected and used to create images of the body's metabolic activity.

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hmm, i not sure i come back later with the answer.

Answer:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

Explanation:

In yeast, the reaction is eleventh order:Rate = K[ enzyme ] [isocitrate]⁴[AMP]²[NAD⁺]m [Mg²⁺]². The order with respect to NAD⁺ is 2.

The citric acid cycle is also called the Krebs cycle. This is the main source of energy that happens in aerobic conditions.

The coefficient that is raised to the active concentration of the reactants is the order in the mass action law. It is determined experimentally and can be fractional, positive, negative, or zero.

Each reactant's order, which is increased to its power in the rate law, is added to determine the order of the entire reaction.

The overall rate = 11

Rate of overall reaction = 1 + 4 + 2 + m + 2 = 11

9 + m = 11

m = 2

Thus, the order with respect to NAD⁺ is 2.

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Answer: Yes, sulfuric acid is highly soluble in water.

Explanation:

This molecule violates the octet rule because xenon, the central atom, has 8 valence electrons surrounding it (6 from the fluorine atoms and 2 from its own), which is less than the typical octet of 8 electrons. The correct answer is b. F-Xe-F.

This is known as an expanded octet. O-C1-O and all other non-halogen compounds typically follow the octet rule. Therefore, the answer is not c. both of these, and it is not d. none of these.

The core atom, xenon, has 8 valence electrons surrounding it (6 from the fluorine atoms and 2 from its own), which is less than the normal octet of 8 electrons. As a result, this molecule breaks the octet rule. It's called an expanded octet. All non-halogen compounds generally adhere to the octet rule, including O-C1-O. Therefore, neither c. both of these nor d. none of these are the correct answers.

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Answer:

That it is hard to compress

Explanation:

Glycine is the N-terminal residue and Serine is the C-terminal residue.

From the given polypeptide Gly-Tyr-Gly-Phe-Met-Ser, the correct statements are:

Glycine is the N-terminal residue: This is correct because glycine is the first amino acid in the sequence, making it the N-terminal residue.

Serine is the C-terminal residue: This is correct because serine is the last amino acid in the sequence, making it the C-terminal residue.

Methionine is the N-terminal residue: This statement is incorrect. Although methionine is present in the sequence,

it is not the first amino acid. Glycine is the first amino acid, so it is the N-terminal residue.

Therefore, the correct statements are:

Glycine is the N-terminal residue.

Serine is the C-terminal residue.

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A redox reaction is a reaction where both oxidation and reduction take place. In such reactions, electrons are exchanged between the reactants. The reaction which represents a redox reaction out of the given options is

Pb²⁺ + 2Br⁻ → PbBr₂

Redox reactions involve the transfer of electrons from one molecule to another molecule. Some ways to identify if a given reaction is a redox reaction or not are as follows: If a molecule gains electrons, it gets reduced, and if a molecule loses electrons, it gets oxidized. If both of these processes occur in a reaction, it is a redox reaction. Another method is to check whether there is a change in oxidation state in the reactants or not. If there is a change, it indicates a redox reaction. Reaction that represents a redox reaction out of the given options is: Pb²⁺ + 2Br⁻ → PbBr₂.

The oxidation state of lead changes from +2 in Pb²⁺ to 0 in Pb, indicating a reduction. Simultaneously, the oxidation state of bromine changes from -1 in Br⁻ to 0 in PbBr₂, indicating an oxidation. As a result, this reaction is a redox reaction.

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