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
Sonja [21]
3 years ago
9

When 0.639 L of a 0.60 M solution is diluted to 2.822 L, what is the new molarity? Report your answer with 4 decimal places.

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
7 0

Answer:

The new molarity is 0,1359M.

Explanation:

A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).

We use the formula for dilutions:

C1 x V1 = C2 x V2

0,60 M x 0,639 L= C2 x 2,822 L

C2=(0,60 M x 0,639 L)/ 2, 822 L

<em>C2=0,1359 M</em>

You might be interested in
Which statment correctly decribes a law?
xeze [42]
B) is a factual statement
Laws are based on observations and experiments and have been tested many, many times to show no error
4 0
3 years ago
PLEASEE HELPPP ME WITH NUMBER 5!!!!!!!
riadik2000 [5.3K]

Answer:

hi dont report me we are friends can i get brainliest plzz?

Explanation:

5 0
3 years ago
Oxygen 22 has a half life of 2.25 seconds. What percent of the sample is left after 2.25 seconds?
Nonamiya [84]

Answer:

50 because it’s a ratio problem

Explanation:

6 0
3 years ago
Read 2 more answers
Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(II)
vovangra [49]

Answer:

0,051g of O₂

Explanation:

The reaction of precipitation of Fe is:

4Fe(OH)⁺(aq) + 4OH⁻(aq) + O₂(g) + 2H₂O(l) → 4Fe(OH)₃(s)

<em>-Where the Fe(OH)⁺ is Fe(II) and Fe(OH)₃ is Fe(III)-</em>

This reaction is showing you need 1 mol of O₂(g) per 4 moles of Fe(II) for a complete reaction.

85mL= 0,085L of 0,075M Fe(II) are:

0,085L*0,075M = 6,34x10⁻³ moles of Fe(II)

For a complete reaction of 6,34x10⁻³ moles of Fe(II) you need:

6,34x10⁻³ moles of Fe(II)×\frac{1molO_2}{4moles Fe(II)} =

1.59x10⁻³ moles of O₂. In grams:

1.59x10⁻³ moles of O₂×\frac{32g}{1molO_2} = <em>0,051g of O₂</em>

<em></em>

I hope it helps!

7 0
3 years ago
On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15
MrMuchimi

Answer:

5400 cans

Explanation:

First we convert the total weight, 1 ton, to grams:

1ton=1x10^{6}g

Now we need to know the mass of aluminum:

m_{Al}=\frac{10^{6}*8.1}{100} =81000g

Now we make the relation between the mass of aluminum in 1 ton of the earth's crust and the mass of aluminum per can:

n=\frac{81000g}{15g/can} =5400cans

8 0
3 years ago
Other questions:
  • Which of the following statements about line graphs is true?
    15·2 answers
  • Which of the following is a hypothesis that you could form about how soil
    8·1 answer
  • A sentence using the term pseudoscience
    6·1 answer
  • 20 points will favor answer Please guys i could really use some help on this question
    13·1 answer
  • The K w for water at 0 ∘ C is 0.12 × 10 − 14 M 2 . Calculate the pH of a neutral aqueous solution at 0 ∘ C . p H = Is a pH = 7.2
    15·1 answer
  • An aqueous solution is made by dissolving 29.4 grams of aluminum acetate in 433 grams of water. The molality of aluminum acetate
    11·1 answer
  • A farmer has a bucket of fertilizer that will help her plants grow. She
    5·1 answer
  • PLEASEEEE ANSWERR 15 POUNTS
    9·2 answers
  • Help me please
    12·1 answer
  • Define the following terms<br> a. crystallization<br> b. radical<br> c. mixture​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!