CHEMISTRY HIGH SCHOOL

Why does the addition of acid increase the solubility of calcium phosphate?

Answers

Answer 1
Answer:

An addition of acid increases the solubility of calcium phosphate because the hydrogen ions can easily dissociate and form salts. And example is from the reaction 3H2SO4 + Ca3(PO4)2 → 2H3PO4 + 3CaSO4. CaSO4 is the salt of sulfuric acid and calcium phosphate. 

Related Questions

Consider the processes I) NaCl(s) −→ Na+(aq) + Cl−(aq) II) CaCO3(s) −→ CaO(s) + CO2(g) III) H2O(ℓ) −→ H2O(s) For which cases would entropy of the system increase as the given process proceeds left to right? 1. I, II, III 2. I, II 3. III only 4. I, III 5. II only 6. II, III 7. I only
From which of the following do spiral galaxies form? A.rapidly cooling protogalactic clouds high-density protogalactic clouds rapidly spinning protogalactic clouds colliding/merging protogalactic clouds
What color is potassium iodide and lead nitrate ? (is) because it is mixed and it is all one as a compound or a chemical formula or equation .
A substance is tested in a lab. It is found to maintain a unique shape and is a good conductor of electricity. If it is made up of electrons, protons, and neutrons, what state of matter is this substance most likely to be?
In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10.Complete the equation in your answer booklet for the equilibrium that exists in liquid water.

Corrosion is the process by which iron is oxidized by elemental oxygen. therefore oxygen is the (oxidizing / reducing) agent and (gives / accepts) electrons.

Answers

Answer:

Oxygen is the oxidizing agent and accept electrons

Explanation:

  • Corrosion is an example of a redox reaction which involves both reduction and oxidation process.
  • During corrosion a metal loses electrons and becomes oxidized to form a metal ion.  Therefore, oxygen is the oxidizing agent since it undergoes reduction by gaining electrons.
  • Therefore, during corrosion of iron, iron is the reducing agent and gives electrons, while oxygen is the oxidizing agent and accepts the electrons.

A 50 ml sample of calcium hydroxide solution required 19.50 ml of 0.1050N HCL titration. Calculate the amount of calcium hydroxide in the 50 sample?

Answers

The reaction of calcium hydroxide (Ca(OH)2) and hydrochloric acid (HCl) is:
Ca(OH)2 + 2HCl --> CaCl2 + 2H2O. So the amount of calcium hydroxide in the sample is ((19.50ml HCl)/1000) x 0.1050 mol/L 
From the balanced equation above: (1 mol Ca(OH)2 / 2 mol HCl) 
Calculating the amount of Ca(OH)2 in the 50ml sample, multiply with the molar mass: 
((19.50ml HCl)/1000) x 0.1050 mol/L x (1 mol Ca(OH)2 / 2 mol HCl) x 74.039 g/mol

A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lose a lot of energy, the hydrogen bonds hold them relatively far apart. Based on this information, what can the scientist infer about the substance?

Answers

Answer is: It expands when it freezes.

When molecule frezes, it lose energy. When molecules are far apart, it means the volume is greater and it expands.

For example, ice expands when water is freezing.

Hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (H), covalently bound to a highly electronegative atom such as flourine (F), oxygen (O) and nitrogen (N) atoms.
The more the heat energy present in it the bond between the molecules gets weaker just like water

Which of the following properties of an element is least likely to change with beta decay?

Answers

The answer is the mass number! (:

Polar winds are usually from the________ direction.

Answers

Polar winds are usually from the east direction.

Answer:

Easterly

Explanation:

A 4.00 mL aliquot of a 0.15 M HCl solution is diluted to a final volume of 25.00 mL. What is the molarity of this first dilution solution? Then a second dilution was made by taking 7.50 mL of the first dilution and diluting it to 50.00 mL. What is the molarity of this second dilution?

Answers

Final answer:

The molarity of HCl after the first dilution is 0.024 M and after the second dilition, it is 0.0036M.

Explanation:

The problem at hand is a solution dilution problem in the field of Chemistry, usually tackled by the use of formula M1V1=M2V2, where M1 and V1 are the original molarity and volume, and M2 and V2 are the molarity and volume after dilution. In the first dilution, applying this formula gives (0.15 M)(4.00 mL) = (M2)(25.00 mL), solving for M2 gives a value of 0.024 M. The second dilution would similarly have the equation (0.024 M)(7.5 mL) = (M3)(50.0 mL), which gives M3 approximately 0.0036 M. Hence, the molarity of the first dilution would be 0.024 M and the molarity of the second dilution would be 0.0036 M.

Learn more about Solution Dilution here:

brainly.com/question/31521767

#SPJ12
I really dont know but it would be useful to use chegg it really help you find the answer in a proper manner
Other Questions
How many molecules is 1.50 moles of CO2
The molar mass of NH3 is 17.03 g/mol. The molar mass of H2 is 2.0158 g/mol. In a particular reaction, 0.575 g of NH3 forms. What is the mass, in grams, of H2 that must have reacted, to the correct number of significant figures?
Select all that apply.The requirements for one type of atom to substitute for another in a solid solution are:All substitutions must be limited to the same element.An atom must be identical in size.An atom must be similar in size.The substituting atom must be from the same period.The substituting atom must be from the same group.
What is the charge on an electrically neutral atom of hydrogen?. . A. 1. . B. 0. . C. +1. . D. +2.