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
Alex_Xolod [135]
2 years ago
8

What is the molarity of a 3.0-liter solution that contains 0.45 moles of solute?

Chemistry
2 answers:
jolli1 [7]2 years ago
5 0
Molarity = moles / Volume in liters

M = 0.45 / 3.0

M = 0.15 mol/L 
anyanavicka [17]2 years ago
3 0

Answer: 0.15 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{moles}{\text {Volume in L}}

Moles are calculated by dividing the given mass by molecular mass of that substance.

Molarity=\frac{0.45moles}{\text {3.0 L}}

Molarity=0.15M

You might be interested in
Find the molar mass of potassium dichromate, K2Cr2O7
prisoha [69]
The molar mass of K is 39, Cr is 52, and O is 16. The rough calculation of these numbers are 294. 
6 0
3 years ago
Aluminum bronze contains 92.0% copper and 8.0% aluminum. What maximum mass of aluminum bronze can be prepared from 73.5g of copp
Keith_Richards [23]
The ratio of aluminum bronze components is:

92.0 Cu / 8.0 Al

The ratio of Cu and Al avilable is: 73.5 Cu / 42.2 Al

Then, it is evident that Al is in excess and Cu is the limitant material.

So, you need two work with the open proportion 92.0/ 8.0 = 73.5Cu / x

=> x = 73.5 * 8 / 92 = 6.39

Then, you can use 6.4 grams of Al and 73.5 grams of Cu to prepare 6.39g + 73.5g =  79.89.grams of Bronze.

I hope this helps.





 
6 0
3 years ago
How is the rate of appearance of h2o related to the rate of disappearance of o2?
erastovalidia [21]
If we consider a combustion reaction of Methane:

The balanced equation is:

CH4 + 2O2 ---> 2H2O + CO2

The rate of appearance of H2O is rH2O, rate of disappearance of O2 is -rO2

(rH2O)^2 = (-rO2)^2
rH2O = -rO2
6 0
3 years ago
Calculate the mass in grams of 1.72×10^24 molecules of formaldehyde. The chemical formula for formaldehyde is CH2O.
pishuonlain [190]

Answer: m= 85.8 g CH2O

Explanation: First step is convert the molecules of CH2O to moles using the Avogadro's Number.

1.72x10²⁴ molecules CH2O x 1 mole CH2O / 6.022x10²³ molecules CH2O

= 2.86 moles CH2O

Next is convert the moles of CH2O to mass using the molar mass of CH2O

2.86 moles CH2O x 30 g CH2O / 1 mole CH2O

= 85.8 g CH2O

5 0
3 years ago
At 500 K, the reaction is at equilibrium with the following concentrations. [PCI5]= 0.0095 M [PCI3] = 0.020 [CI2] = 0.020 M What
Ad libitum [116K]
Although it is omitted, the reaction equation for the decomposition of phosphorus pentachloride is:
PCl₅ → PCl₃ + Cl₂

The equilibrium constant's equation then becomes:
Kc = [PCl₃]*[Cl₂] / [PCl₅]
Kc = (0.02 * 0.02) / 0.0095
Kc = 0.042

The equilibrium constant is 0.042.
8 0
2 years ago
Read 2 more answers
Other questions:
  • What is not a trace gas found in our atmosphere oxygen,argon,carbon dioxide or neon
    12·1 answer
  • Ionization energy and electron affinity both express the general attraction of an atom for
    9·1 answer
  • Why does light that passes through our windows at home not display the beautiful colors
    9·1 answer
  • Two friends are arguing about the structure of the universe. Caleb says that the universe is made of many galaxies that are made
    11·1 answer
  • A household variety of coal is
    10·1 answer
  • about how long does it take for the reaction to reach equilibrium in this concentration versus time graph?
    5·2 answers
  • 1
    10·1 answer
  • Cold packs, whose temperatures are lowered when ammonium nitrate dissolves in water, are carried by athletic trainers when trans
    6·1 answer
  • A dog has greater mass as an adult than she did as a puppy. Has matter been created? Why or why not?
    7·2 answers
  • In this activity, you are tasked with designing an airbag for a company that creates airbags for automobiles. You must design th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!