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
kakasveta [241]
4 years ago
6

What is the molecular weight (mass) for KOH? 56.10 g/mol 57.00 g/mol 28.00 g/mol

Chemistry
1 answer:
IRINA_888 [86]4 years ago
8 0

Molecular weight (mass):

It is the molecular mass of a substance that can be calculated by sum of atomic weight of atoms that are present in the molecule multiple by the total number of molecule.

In KOH,

Atomic weight of K=39.1

Atomic weight of O=15.9

Atomic weight of H=1

Molecular weight=Atomic weight of K+Atomic weight of O+Atomic weight of H

=56.1 g/mol

So the answer is A that is 56.10 g/mol

You might be interested in
Does SiO2 also equal Si2O4?<br> (silicon atom 1 oxygen atom 2 = silicon atom 2 oxygen atom 4?)
Norma-Jean [14]

Answer:

7

Explanation:

that is the anwer of the question

8 0
3 years ago
How many atoms of copper are in a quarter?
kvv77 [185]
9.5⋅<span>10<span>2 

</span></span>Explanation:

To figure out how many atoms of copper you get in 1 gram of copper, you need to use copper's molar mass.

5 0
3 years ago
Write a paragraph on: how Westfield how the rust in their water formed.
Mariana [72]

Answer:

Students have investigated what's going on in the fictional town of Westfield, they learned that the mysterious reddish-brown substance in the water is actually rust, which formed because of a chemical reaction between the iron pipes and the fertilizer substance in the water.

Explanation:

8 0
3 years ago
Please help! <br> Answer please!
padilas [110]

Answer: a

Explanation: a

8 0
3 years ago
If heat transfers from the system (solute) to the surroundings (solvent), then AH is
balu736 [363]

Answer:

B) exothermic.

Explanation:

Hello!

In this case, we need to keep in mind that exothermic reactions release heat, so they increase the temperature as the final energy is less than the initial energy; in contrast, endothermic reactions absorb heat, so they decrease the temperature as the final energy is greater than the initial energy.

In such a way, when a dissolution process shows off a negative enthalpy of dissolution, we infer it is an exothermic process due to the aforementioned; therefore, the answer is:

B) exothermic .

Best regards!

3 0
3 years ago
Other questions:
  • Which of the following is a result of the specific heat differences between land and ocean
    14·1 answer
  • Which is the most reasonable explanation for a drop of temperature for gas
    6·1 answer
  • Fter a radioactive atom decays, it is the same element that it was before with no measurable change in mass. Which kind of decay
    8·2 answers
  • Elaborate on the difference in natural occurrences between fission and fusion reactions.
    11·1 answer
  • Pls help me here, thanks in advance
    10·2 answers
  • Groups of cells that work together to perform a similar function was the evolution of what
    15·1 answer
  • What is this wave transferring to the tree?
    13·1 answer
  • Whoever gets me right gets whatever they want
    8·2 answers
  • Calculate the percentage of CL in AL(CLO3)3​
    12·1 answer
  • Calculate how many moles of water molecules were produced in the combustion of ethanol in oxygen.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!