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
ololo11 [35]
3 years ago
8

What is the number of moles of 27.6 grams of lithium

Chemistry
1 answer:
Leya [2.2K]3 years ago
6 0
Lithium's atomic weight is 6.94 g/mol.

27.6 g Li (\frac{mol}{6.94 g}) = 3.98 mol Li

Need anything else?

You might be interested in
WILL GIVE BRAINLIST
8_murik_8 [283]
I would choose C bc if u look at it closely u can notice it goes up steadily and then BANG it decreases a lot
4 0
3 years ago
Why is a mass movement of mud called a flow?
wariber [46]
In terms of a deeper scientific reason, I am not sure, but the basic reason is quite simple. "Mud" tends to look like a mix between a solid, dirt, and a liquid, water or some other liquid. Since it is, in fact, a cross between a solid and a liquid, it has properties of both. It has certain physical and visual properties that only a solid would have, such as texture and opaqueness, but it also has physical properties of a liquid. Since it leans more towards the liquid side than the solid side, we say mud "flows" rather than saying that it "rolls" or "bounces".
5 0
3 years ago
Two different compounds are formed by the elements nitrogen and oxygen. The first compound, compound P1, contains 64.17% by mass
xz_007 [3.2K]

Answer:

Explanation:

To solve the problem, we must know the kind of compounds we are dealing with.

For the first compound, P1 and second compound P2:

                                N                       O                         N                     O

Mass percent       64.17                 35.73                  47.23               52.79

Atomic mass          14                      16                         14                    16

Number of

moles            64.17/14            35.73/16            47.23/14    52.79/16      

                            4.58                  2.23                     3.37                  3.30

Simplest

ratio                 4.58/2.23            2.23/2.23             3.37/3.30         3.3/3.3

                              2                           1                             1                        1

                             

P1 compound is N₂O

P2 compound is NO

These are the compounds,

   In N₂O = 28:16

          NO = 14:16

This is the ratio of nitrogen to a fixed mass of oxygen for the two compounds.

7 0
2 years ago
Which property of matter changes during a chemical change but not during a physical change
andrew-mc [135]

Answer:In a physical change, atoms are not rearranged and the matter's physical and chemical properties are unchanged. Chemical changes, on the other hand, rearrange the atoms of matter in new combinations, resulting in matter with new physical and chemical properties.

Explanation:

easy

8 0
3 years ago
Can you please tell me what is a rock?
ivann1987 [24]

Answer:

its on goggle!

Explanation:

6 0
2 years ago
Other questions:
  • What are the four most common problems that can arise in your motor design?
    11·1 answer
  • how many moles of water H2O contain 2.0 x 10^22 molecules of water? express the quantity in moles to two significant figures
    7·1 answer
  • 11. The strength of a force is measured in
    7·1 answer
  • Why does temperature stay constant during a phase change?
    8·2 answers
  • λmax for the π → π* transition in ethylene is 170 nm. Is the HOMO-LUMO energy difference in ethylene greater than or less than t
    12·1 answer
  • Calculate the percent of composition of oxygen in Mercury (ll) oxide HgO
    8·1 answer
  • Match: Substance ....... Definition Lewis acid A. Provides H+ in water Bronsted-Lowry base B. Provides OH - in water Arrhenius b
    12·1 answer
  • In a classical long run supply model the economy is always doing what
    12·1 answer
  • Write a<br> paragraph or two on electromagnetism.
    5·1 answer
  • A van moves with a constant speed
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!