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
Romashka [77]
3 years ago
13

What is the percent composition of Br in CuBr3?

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

Answer:

about 79% (79.04369332 to be exact)

Explanation:

Percent composition=(Molar mass of element x amount of it)/Molar mass of compound x 100

Br= 3 x 79.9/303.25 x100=79.04369332

You might be interested in
Which of the following is a carboxylic acid?
MrRissso [65]

Answer:d

Explanation:

6 0
2 years ago
The cycling of carbon between the living and non-living parts of the Earth system is an important result of which of the followi
lesantik [10]

Answer:

b. Plants and animals exchanging gases with the atmosphere

Explanation:

5 0
3 years ago
Which of the following apply to gases. Select all that apply.
melamori03 [73]

Explanation:

In gases the molecules are held together by weak Vander waal forces. Due to this they have more kinetic energy and they tend to diffuse at a faster rate because of more number of collisions between the molecules.

That is why, its molecules readily spread into the atmosphere as compared to the molecules of solids and liquids. Also, when molecules of a gas collide with the walls of a container then they tend to come back at their initial position for a fraction of second or more.

Hence, gas collisions are elastic in nature.

According to Graham's law, rate of diffusion of a gas is inversely proportional to the square root of molar mass of the gas. Hence, more is the molecular weight of gas less likely it is able to diffuse into the surroundings.

       \text{Rate of diffusion} \propto \sqrt{\frac{1}{M}}

Thus, we can conclude that following apply to gases.

  • Gas collisions are elastic.
  • Gases mix faster than solids or liquids.
  • Gases with larger molecular weights diffuse slower than gases with lower molecular weights.
4 0
3 years ago
Balance this equation and determine what the coefficients should be.
11Alexandr11 [23.1K]

Answer:

1, 2, 1, 1

Explanation:

3 0
3 years ago
The standard cell potential (E°cell) for the reaction below is +0.63 V. The cell potential for this reaction is ________ V when
Natasha_Volkova [10]

Answer: 0.52V

Explanation:

Ecell = Ecell(standard) - [(0.0592 logQ)/n]

Q = product of the quotient

n = no of electrons transferred = 2

Ecell = 0.63 - [(0.0592*Log(1 / 2.0 * 10-4) / 2]

Ecell = 0.63 - 0.0194

Ecell = 0.5205V

5 0
3 years ago
Other questions:
  • What happens when the pressure of a gas is decreased?
    12·2 answers
  • Ammonia, NH3, is a weak base with a Kb value of 3.95×10−5. What is the percent ionization of 0.085 M ammonia?
    9·1 answer
  • Using Carbon cycle what carbon trapped in fossil fuels is converted to carbon dioxide
    10·1 answer
  • What type of chemical reaction does this equation represent?<br> H3PO3—&gt;H3PO4 + PHz
    11·1 answer
  • What is the pH of a pure 0.5L batter acid from the PhET simulation?
    5·1 answer
  • For molecules of comparable mass, why are dipole-dipole forces stronger than dispersion forces?
    12·1 answer
  • How is energy transferred when objects are in contact A. Conduction B. Convection C. latent heat D. Radiation​
    11·1 answer
  • Calculate the pH of a 0.09 M solution of HBr​
    12·1 answer
  • Which refers to the bending of a wave as it passes through one medium to another medium?
    8·2 answers
  • Remember that c is always about 300,000 km/s. Use the formula you identified to explain how the two factors in the formula are r
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!