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
xxMikexx [17]
2 years ago
9

A 33.6 mL solution of KCl has a mass of 27.29 g. After evaporating to dryness, the dry salt residues has a mass of 6.31 g. Calcu

late the following: a. %m/m b. Molarity (M)
Chemistry
1 answer:
bixtya [17]2 years ago
4 0

For  the molarity and the  percentage of the mass of kcl are mathematically given as

%m/m = 23.1%, molarity  = 3.38M

<h3>What is the molarity?</h3>

Generally, the equation for the  percentage of the mass of kcl is mathematically given as

(mass of kcl/mass of solution)x 100

therefore

%m/m = (6.31/27.29)x100

%m/m = 23.1%

The molarity

(no of mol/ vol of sol)

molarity  = 0.0846mol/0.0250 L

molarity  = 3.38M

In conclusion, the molarity is given as

molarity  = 3.38M

Read more about Molarity

brainly.com/question/9149034

You might be interested in
I need help like extremely bad
Anna007 [38]

Answer:

First start with the ones we know

Explanation:

1. small - gene

2.chromosome - chromosomes contain genes so they must be bigger

3.dna- is all the chromosomes (genetic material)

A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell

a pair - so must be bigger than one chromosome

1. small - gene

2.chromosome - chromosomes contain genes so they must be bigger

3. homologus pair

4.dna- is all the chromosomes (genetic material)

now 5.

A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism's DNA. DNA is long and skinny, capable of contorting like a circus performer when it winds into chromosomes.

1. small - gene

2.chromosome - chromosomes contain genes so they must be bigger

3. homologus pair

4.dna- is all the chromosomes (genetic material)

5. genome - all the DNA

Cell

Nucleus

DNA

Chromosome

Gene

7 0
3 years ago
Two processes of plant reproduction are described below.
Stells [14]

Answer:

Process 1 is pollination and Process 2 is germination

Explanation:

Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.

Germination refers to the process by which an organism grows from a seed or a spore. The most common forms of germination include a seed sprouting to form a seedling and the formation of a sporeling from a spore. Thus, germination occurs primarily in plant and fungal species.

I hope this help :)

good luck

6 0
2 years ago
Read 2 more answers
Is fluorine a nonmetal or metal?
Ratling [72]

Answer:

Nonmetal...

Explanation:

T^T

6 0
2 years ago
Read 2 more answers
Heat of vaporization is the amount of heat required to
deff fn [24]
I believe the answer would be c?? I’m not too sure though
5 0
3 years ago
7.20g of potassium sulfate reacts with the excess oxygen gas in a single displacement reaction, how many grams of oxygen are con
skad [1K]
The balanced chemical reaction:

K2SO4 + O2 = 2KO2 + SO2

Assuming that the reaction is complete, all of the potassium sulfate is consumed. We relate the substances using the chemical reaction. We calculate as follows:

7.20 g K2SO4 ( 1 mol / 174.26 g) ( 1 mol O2 / 1 mol K2SO4 ) ( 32 g / 1 mol ) = 1.32 g O2 consumed in the reaction.
5 0
3 years ago
Other questions:
  • What is common about the elements of a period? Select all that apply. They have the same number of electron energy levels. They
    8·1 answer
  • Boron occurs naturally as two isotopes. What is the difference between these isotopes?
    14·2 answers
  • Which kind of substance accepts an electron pair?
    13·2 answers
  • Which notation is used to represent gamma decay?
    10·2 answers
  • Energy is used to combine amino acid building blocks in order to build a large protein. What type of reaction is this?
    13·1 answer
  • 4. When cerium sufate, Ce(SO4)3, is dissolved in water, energy is:?
    7·1 answer
  • In any experiment the accuracy of the data and experiment can be improved. What are some things that can be done to improve data
    14·2 answers
  • How is bacteria on mars counted as life but a heartbeat on earth is not?
    6·1 answer
  • How many grams are in 0.535 moles of sodium bromide? (Please add work)
    13·1 answer
  • Finish the attachment quick it's due pleaseee
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!