1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
N76 [4]
3 years ago
8

What is the mass in grams of 2.21 mole of Ca3(PO4)4?

Chemistry
1 answer:
lesya [120]3 years ago
7 0

Answer:

1105.29 grams

Explanation:

If you calculate the molar mass of Ca3(PO4)4 you'll get 500.13. Molar mass is the mass of one mole of a substance. Multiply 500.1194 by 2.21 because we have 2.21 moles to get 1105.264 grams.

The molar mass of Ca is 40.078 grams, and there are 3 of them. So 40.078 x 3 is 120.234 grams.

The molar mass of P is 30.974 and there are 4 P's, so 30.974 x 4 is 123.896 grams.

The molar mass of O is 16 grams and there are 6 of them. Again, 16 x 16 is 256 grams.

Add up 120.234 + 123.896 + 256 to get the molar mass of Ca3(PO4)4, 500.13.

You might be interested in
Thorium is an element that occurs naturally in the earth's crust. The only naturally occurring isotope of thorium is 232Th and i
Murrr4er [49]

A, radium-228. Alpha radiation is essentially just two protons and two neutrons leaving the atom, causing the atomic number to drop by two (since the protons left) and the mass number to drop by four (since two neutrons and protons left).

4 0
3 years ago
Read 2 more answers
Hno3, a strong acid, is added to shift the ag2co3 equilibrium (equation 7.6) to the right. explain why the shift occurs.
Deffense [45]
Answer 1)  When a strong acid like HNO_{3} reacts with Ag_{2} CO_{3} usually the equilibrium shifts to the right because

As per the Le chatelier's principle "if in any reaction, a dynamic equilibrium is disturbed by changing the any of the conditions, the position of equilibrium moves to counteract the change."  So, in the given reaction when HNO_{3} reacts with Ag_{2} CO_{3}  it generates carbon dioxide and water as a by product, if we are adding HNO_{3} it will remove some of the CO_{3} molecule from the reaction mixture, which then tends to shift the equilibrium towards right.

Answer 2) The same would be observed in this case, if we replace HNO_{3} with HCl it will shift the equilibrium to the right as their will be generation of AgCl as the precipitate.

As per the definition of Le Chatelier's principle if we add reactants in the reaction the equilibrium will tend to move towards right, also if we replace the products or remove it then too it will shift the equilibrium towards right. So, in this reaction you are removing Ag^{+} and Cl^{-} ions from the solution.
7 0
3 years ago
Why are there so many capillaries in the lungs?
AysviL [449]
There's a lot of capillaries in the lungs because the blood needs to be transferred and the capillaries are the smallest vessels that can do this.
6 0
3 years ago
HELP!!! What is the key to sustainability of natural resources? A. using as many renewable resources as possible. B. obtaining n
tensa zangetsu [6.8K]

managing resources so they are not overused.

7 0
2 years ago
For many purposes we can treat propane as an ideal gas at temperatures above its boiling point of . Suppose the temperature of a
irina [24]

Answer:

See explaination

Explanation:

please kindly see attachment for the step by step solution of the given problem

4 0
3 years ago
Other questions:
  • Which statements about viscosity are true? (i) viscosity increases as temperature decreases. (ii) viscosity increases as molecul
    8·2 answers
  • At a constant pressure and amount of gas, how are temperature and volume related?
    13·1 answer
  • 1. Why is it that some combinations of ions do not seem to react while others result in precipitate? 2. For an insoluble compoun
    8·2 answers
  • What type of matter is salt water?
    10·1 answer
  • Iron(II) sulfide reacts with hydrochloric acid according to the reaction:
    9·2 answers
  • Calculate the entropy change when a. two moles of H2O(g) are cooled irreversibly at constant p from 120°C to 100°C. b. one mole
    9·1 answer
  • Which are examples of equilibrium? Check all that apply. Water drips out of a faucet and down a drain. A person's income and exp
    14·2 answers
  • Explain why crude oil is a fossil fuel​
    14·2 answers
  • 5.Are pure solids included in equilibrium expressions? Explain your answer.
    14·1 answer
  • A Cylinder has a diameter of 20 m and a height of 100 cm.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!