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
Salsk061 [2.6K]
3 years ago
14

How many zn atoms are contained in 922 g of zn

Chemistry
1 answer:
Bad White [126]3 years ago
3 0
To determine the number of zinc atoms from a given mass of zinc metal, we need to convert the mass into moles by using the atomic mass of zinc which is 65.38 grams per mole. Then, we use the Avogadro's number to convert it to number of atoms. It <span>represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. We do as follows:

Moles Zn = 922 g ( 1 mol / 65.38 g ) = 14.10 mol
no. of Zn atoms = 14.10 mol Zn (</span> 6.022 x 10^23 atoms / mole<span> )  = 8.49x10^24 atoms Zn</span>
You might be interested in
Which has the larger radius, F or F− ?
vlabodo [156]

Answer is B-  F has a smaller radius than F− because an additional electron causes greater repulsion in F− is the correct choice and the nuclear charge the radius of the anion increases.

Explanation: I hoped that helped!

6 0
3 years ago
What is a combination of two or more substances that are all solids
Sophie [7]

Answer:

Solids cant react to each other because they are the same room temperature

7 0
3 years ago
Difference between sodium ion and sodium atom.<br>(give in points not in paragraph)​
Natali5045456 [20]

Answer:

Explanation:

SODIUM ATOM;

SODIUM ATOM IS NEUTRAL

SODIUM ION;

IT IS A CHARGED SPECIE WITH A CHARGE OF +1

SODIUM ATOM:

THE NUMBER OF PROTONS AND ELECTRONS ARE SAME ie:11

SODIUM ION:

NUMBER OF PROTONS AND ELECTRONS ARE NOT SAME ie. ELETRON: 10, PROTONS:11

HOPE IT WILL HELP:)

3 0
3 years ago
A solution of NaOH has a concentration of 25.00% by mass. What mass of NaOH is present in 0.250 g of this solution? Use the peri
meriva
The concentration of NaOH is 25.00% by mass, it means that 25.00% of the mass of the solution is of NaOH. Hence:

m_{NaOH}=25.00\%\times m_{solution}\Longrightarrow m_{NaOH}=\dfrac{25}{100}\times 0.250~g\iff\\\\\boxed{m_{NaOH}=0.0625~g}
7 0
3 years ago
Read 2 more answers
Write the word and balanced chemical equations for the reaction between:
kupik [55]

Answer:

Alumminum hydroxide reacts with sulfuric acid as follows: 2Al(OH)3+H2SO4-->Al2(SO4)+6H2O.

Explanation:

plz mark as brainlist

7 0
2 years ago
Other questions:
  • opnTens Location: Test: Question 1 of 40)ToolsThermal energy travels through space from the Sun to Venus. This is an example ofA
    8·1 answer
  • Given 4.80g of ammonium carbonate, find:
    6·1 answer
  • Which of the following is generally true of female bones in relationship to male bones?
    12·1 answer
  • What causes a top to stop spinning?
    11·1 answer
  • The half life of carbon 14 is 5730 years what fraction of the original c14 would you expect to be present in a fossil that is 28
    8·1 answer
  • The reaction of hydrogen bromide(g) with chlorine(g) to form hydrogen chloride(g) and bromine(g) proceeds as follows: 2HBr(g) +
    11·1 answer
  • Carbon monoxide and chlorine gas react to form phosgene:
    13·1 answer
  • A brick measures 0.018 dam by 6.5 cm by 17.3 cm. What is the volume of the brick in cubic centimeters
    6·1 answer
  • A gas occupies a volume of 31.0 ml at 19.0°C. If the gas temperature rises to 38.0°C at constant pressure. Calculate the new vol
    5·1 answer
  • How do you combine water and fire? WILL GIVE BRAINLIESTS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!