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
jok3333 [9.3K]
3 years ago
8

A cube of tin that is 112 mm on each side has a mass of 8.21 grams. A single tin atom has a mass of 118.7 amu. How many tin atom

s are in the cube? Report your answer in scientific notation with 3 sig figs. Use e for scientific notation, for example 100. would be written as 1.00e+2
Chemistry
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

4.17e+22 atoms of tin are present in the cube

Explanation:

We don't require the size of the cube. With the mass and the molar mass of tin = 118.7 amu we can find moles of Tin. As 1 mol = 6.022x10²³ atoms we can find the number of atoms:

<em>Moles Tin:</em>

8.21g * (1mol / 118.7g) = 0.0692 moles Tin

<em>Atoms Tin:</em>

0.0692 moles Tin * (6.022x10²³ atoms / mol) =

<h3>4.17e+22 atoms of tin are present in the cube</h3>
You might be interested in
Which pair of elements forms the most ionic bond? Refer to the periodic table.
Juliette [100K]

Answer:

KCl

Explanation:

Look at the electronegativity differences between the pairs of elements:

KCl: 3.16 - 0.82 = 2.34

BeCl: 3.16 - 1.57 = 1.59

LiCl: 3.16 - 0.98 = 2.18

ClO: 3.44 - 3.16 = 0.28

KCl has the highest electronegativity difference; thus it is the most ionic bond of the 4.

8 0
3 years ago
Read 2 more answers
Show calculation of converting 0.2000kg to grams
sergeinik [125]
Just follow my work

4 0
4 years ago
How is heat involved in chemical reactions and processes
Ksivusya [100]

Most chemical reactions involve the breaking and formation of chemical bonds. It takes energy to break a chemical bond but energy is released when chemical bonds are formed. If more energy is released than consumed, then the chemical reaction evolves heat and is said to be exothermic.

(Have a good day!)

5 0
3 years ago
Read 2 more answers
Logs in a fire, and charged batteries are examples of?
vlabodo [156]

Answer:

Logs in a fire is an example of something burning, also changing its state of form. I think thats chemical change; going from wood to ashes. And charged batteries means they haven't been used yet or they were just charged, resulting in physical change.

Explanation:

I just learned this in science.

I hope this helps!

7 0
4 years ago
How many moles are in 2.91 X 10^22 atoms of He?
fenix001 [56]

0.048

\\  \\  \\  \\  \\  \\  \\

4 0
3 years ago
Other questions:
  • If 8.800 g of c6h6 is burned and the heat produced from the burning is added to 5691 g of water at 21 °c, what is the final temp
    6·1 answer
  • Water is unique because no other substance in nature occurs in
    5·1 answer
  • Help I really need to understand this please show how you do it !!
    12·1 answer
  • Predict the sign of the entropy change of the system for each of the following reactions.
    15·1 answer
  • 7. Which of the following is NOT an example of a mechanical wave?
    6·2 answers
  • What happens to the oxidation number<br> when oxidation occurs?
    5·1 answer
  • A second- order reaction of the type A + B --&gt;P was carried out in a solution that was initially 0.075 mol dm^-3 in A and 0.0
    9·1 answer
  • What does barium + hydrochloric acid make.
    15·2 answers
  • For the following reaction, calculate how many moles of each product are formed when 4.05 g of water is used.
    11·1 answer
  • What is the name of these 4 compound in isomers​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!