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
alekssr [168]
3 years ago
7

Determine the mass in grams of 3.75 x 10^21 atoms of zinc. (the mass of one mole of zinc is 65.39 g)

Chemistry
1 answer:
Nastasia [14]3 years ago
6 0

Answer: The mass in 3.75 \times 10^{21} atoms of zinc is 0.405 g.

Explanation:

Given: Atoms of zinc = 3.75 \times 10^{21}

It is known that 1 mole of every substance contains 6.022 \times 10^{23} atoms. So, the number of moles in given number of atoms is as follows.

Moles = \frac{3.75 \times 10^{21}}{6.022 \times 10^{23}}\\= 0.622 \times 10^{-2}\\= 0.0062 mol

As moles is the mass of a substance divided by its molar mass. So, mass of zinc (molar mass = 65.39 g/mol) is calculated as follows.

Moles = \frac{mass}{molar mass}\\0.0062 mol = \frac{mass}{65.39 g}\\mass = 0.405 g

Thus, we can conclude that the mass in 3.75 \times 10^{21} atoms of zinc is 0.405 g.

You might be interested in
Which planet has a distinctive red spot? A. Mercury B. Venus C. Jupiter D. Mars
Firdavs [7]
Jupiter------------------------
3 0
3 years ago
Read 2 more answers
If log x = -0.761. What does x equal
kvasek [131]
The logarithm from my understanding can never be negative. You can check this on a calculator. You may have a negative if it is shown as -(log x).
4 0
3 years ago
When a substance gains or loses energy, it’s _____ changes, or its _____ chafes. Theses two changes do ___happen at the time ; t
Veseljchak [2.6K]

Answer:

When a substance gains or loses energy, its <u>temperature</u> or <u>state</u> changes. These two changes do <u>not</u> happen with respect to time; the temperature remains <u>the same</u> until the change of <u>state</u> is complete.

Explanation:

This statement is about energy and change of the state of the matter. By gaining or losing energy, the physical state of the matter can change into one another. Melting, freezing, condensation, evaporation, sublimation, and deposition are the processes that support to change the physical state of the matter. Change in state and change in the matter do not happen at the same time. A substance gains or loses energy to reach a specific temperature and remains constant until the physical change of matter is completed.

3 0
3 years ago
Nuclear Chemistry Writing Assignment
pogonyaev

Answer:

21 years

% of parent isotope remaining before safe

6.25%

Explanation:

6 0
3 years ago
Read 2 more answers
Determine the mass, in grams, of 0.350 moles of s (1 mol of s has a mass of 32.07 g).
hram777 [196]

Answer:

11.22 gm

Explanation:

32.07 gm / mole * .350 mole = 11.22 gm

4 0
2 years ago
Other questions:
  • Calculate the kinetic energy of a 150 g baseball moving at a speed of 40. m/s (89 mph).
    8·1 answer
  • what is the new pressure acting on a 2.5 l balloon if its original volume was 5.8 l at 3.7 ATM of pressure
    5·1 answer
  • Food contains chemical potential energy that the body uses. How do you think that the body gains this energy
    5·1 answer
  • The pressure of a gas contained in a cylinder with a movable
    10·1 answer
  • Please choose the answer that describes the Scientific notation of 5,089,000
    8·1 answer
  • What name should be used for the ionic compound LiI?
    7·2 answers
  • Determine the identity of the daughter nuclide from the electron capture by 3517cl. determine the identity of the daughter nucli
    12·1 answer
  • A student calculated that the amount of NaCl that should form in the lab (theoretical yield) is 2.50 grams. The actual amount fo
    5·1 answer
  • Unscramble the letters in Column A to form the correct word being described
    15·1 answer
  • 100POINTS!!!!<br><br> Label each reaction to either homogeneous OR heterogeneous
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!