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
lina2011 [118]
3 years ago
12

What is the molarity of a solution that is made by adding 57.3 g of MgO to 500.0 mL of solutions

Chemistry
1 answer:
goblinko [34]3 years ago
6 0

Answer:

The answer to your question is 2.84 M

Explanation:

Data

mass of MgO = 57.3 g

volume of the solution = 500 ml

Process

1.- Calculate the molar mass of MgO

MgO = 24.3 + 16 = 40.3 g

2.- Calculate the moles of MgO

                 40.3 g MgO ----------------- 1 mol

                  57.3 g MgO -----------------  x

                          x = (57.3 x 1) / 40.3

                          x = 1.42 moles

3.- Calculate the Molarity

Molarity = moles / volume (l)

Volume = 0.5 liters

-Substitution

Molarity = 1.42 / 0.5

-Result

Molarity = 2.84

You might be interested in
What do acids and bases have in common apex?
disa [49]

Both acids and bases produce a part of a water molecule. Bases dissociate hydroxide (–OH) ions and acids, hydrogen (H+) ions that when combined form water. Both are also very corrosive when they are strong enough that they fully dissociate in water.

8 0
3 years ago
Read 2 more answers
In the polypeptide Phe-Tyr-Glu-Asp-Ser-Ile-Leu-Ser what is the N-terminal amino acid?
avanturin [10]

Answer:

N-terminal Phe, C-terminal Ser

Explanation:

Amino acids connect like

NH2 -CH(R1) -CO -NH-CH(R2)-CO-.....-NH-CH(Rn)COOH

So, 1st amino acid is N -terminal , and it is Phe.

Last amino acid is C- terminal, and it is Ser.

7 0
3 years ago
In your own words, define the following terms.<br> 1 Blood<br> 2 Lymph<br> 3 Alveoli
klemol [59]

Answer:

BLOOD - the definition of blood is the fluid carries oxygen

Explanation:

sana po makatulong♡♡

7 0
3 years ago
How many moles of Ca are in 7.2x10^25 molecules of Ca<br> (show work)
Gre4nikov [31]

Answer:

<h2>119.60 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.2 \times  {10}^{25} }{6.02 \times  {10}^{23} }   \\  =119.60132...

We have the final answer as

<h3>119.60 moles</h3>

Hope this helps you

5 0
3 years ago
Need helpppppppppppppppppp
kobusy [5.1K]

Your answer is, all of the above.

<u>Chemical Change </u>

A chemical change occurs on the molecular level and produces a new substance. However, a physical change rearranges molecules and does not produce a new substance.

                    <u>10 examples of chemical changes</u>

  • Burning of paper and log of wood
  • Digestion of food
  • Boiling an egg
  • Chemical battery usage
  • Electroplating a metal
  • Baking a cake
  • Milk going sour
  • Various metabolic reactions that take place in the cells
  • Rotting of fruits
  • Decomposition of waste

                      <u> Impacts of Chemical changes</u>

Anytime a new substance is made, a chemical change takes place. Usually two or more materials are combined and a new substance is formed. A chemical change can produce amazing explosions, like fireworks.

Thus, <u>all of the above</u> is the correct answer. Learn more about "Chemical Changes" here

brainly.com/question/24547616

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the molarity of silver ion in the final solution
    7·1 answer
  • Which of these characteristics do these elements have in common?
    6·1 answer
  • Three products of destructive distillation of coal <br>please answer quickly ​
    5·2 answers
  • In the same condition, what happens to the net force acting on the rope?
    7·1 answer
  • Energy in Devices. An engineer needs to design a device that transforms light energy into sound energy. Describe a design for a
    13·1 answer
  • Calculate the pH of a solution that [H3O4] of 7.22x10-7M
    11·1 answer
  • Which of the following 0.250 m solutions has the greatest freezing-point depression?
    9·1 answer
  • Type in the name of the following compounds. Be sure to use the periodic table if needed.
    10·2 answers
  • Which taxonomic level includes the broadest characteristics?
    13·1 answer
  • If you start with 3 moles of sodium and 3 moles of chlorine to produce sodium chloride, what is the limiting reagent?(you will n
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!