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
Doss [256]
2 years ago
9

Calculate the mass in 4.05*10^22 molecules of calcium phosphate

Chemistry
1 answer:
Marizza181 [45]2 years ago
8 0

Answer:

m = 20.9 g.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to solve this problem by recalling both the Avogadro's number for the calculation of the moles in the given molecules of calcium phosphate and the molar mass of this compound in order to secondly calculate the mass as shown on the following setup:

m=4.05x10^{22}molecules*\frac{1mol}{6.022x10^{23}}*\frac{310.18g}{1mol}\\\\m=20.9g

Regards!

You might be interested in
Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O).
Sindrei [870]
Oxen beacon is great for your self halllway
7 0
3 years ago
which of the following is a physical change? 1.burning paper 2.grinding wheat 3.electrolysis of water 4.cooking rice​
azamat

Answer:

2 grinding of wheat is just a physical change

plz brainlist

4 0
2 years ago
What is the molarity of a solution containing 60. grams of NaOH dissolved in 400. mL of water?
Hunter-Best [27]

Answer: 3.75 M

Explanation:

400 mL = 0.4 L

NaOH has a molar mass of around 40 g/mol.

\frac{60 grams}{40 g/mol} = 1.5 moles

Molarity = \frac{1.5 moles}{0.4 Liters} = 3.75 M

8 0
2 years ago
why do you think you can find silver and gold on their own in rocks but calcium and magnesium are combined with other elements t
katrin [286]

Explanation:

Silver and Gold belong to a special group of metals known as the native metals. They are found naturally on their own and not in combined form in rocks.

  • These metals are found uncombined because they are unreactive.
  • They prefer to alloy with themselves.
  • Calcium and magnesium on the other hand are reactive metals.
  • The unreactivity of these metals makes them uncombined in nature.
4 0
3 years ago
Read 2 more answers
Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to pr
Evgen [1.6K]

Answer:

The answer to your question is:   "react with acids to produce hydrogen gas"

Explanation:

Chemicals properties of matter: are properties that can be measured if there is a chemical change or chemical reaction.

Examples of chemical reactions:

Reactivity

Toxicity

Coordination number

Flammability

Of the properties listed, the only that implies a reaction is "react with acids to produce hydrogen gas"

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many molecules are in a 189 g sample of carbon tetrabromide, CBr4 ?
    5·1 answer
  • What two things are a included when describing force
    8·2 answers
  • Describe the light spectrum of a star
    15·1 answer
  • Ocean water contains 3.5 nacl by mass. what mass of ocean water in grams contains 45.8 g of nacl
    5·1 answer
  • Help please
    10·2 answers
  • Calculate the molarity of 153.3g of H2SO4 in 1.290L of solution
    8·1 answer
  • Why is it so important to use more than just fossil fuels for our energy sources?​
    7·1 answer
  • I need help for this question
    12·1 answer
  • Calculate the number of atoms in 3.21 mole of Mg?
    11·1 answer
  • 7.In which state of matter molecules have more energy to vibrate.​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!