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
Svet_ta [14]
3 years ago
9

3g of magnesium reacted w 0.2 moles of ethanoic acid. Calculate the number of moles of magnesium used

Chemistry
1 answer:
marishachu [46]3 years ago
4 0

Answer:

0.1 moles of magnesium

Explanation:

Mg(s) + 2CH3COOH(aq) -------> Mg(CH3COO)2(aq) + H2(g)

Since the reaction is 1:2 in mole ratio,

1 mole of magnesium reacts with 2 moles of ethanoic acid

x moles of magnesium will react with 0.2 moles of ethanoic acid

2x = 0.2

x = 0.2/2 = 0.1 moles of magnesium used

You might be interested in
A substance made of two or more elements that have been chemically combined is a(n) ______.
RideAnS [48]
Compound (for example: H2O)
5 0
3 years ago
Read 2 more answers
Which connects the ovary and uterus? sperm duct, fallopian tube, urethra, vagina
Jlenok [28]

Answer:

fallopian tube

Explanation:

hope i helped <3

5 0
3 years ago
Read 2 more answers
Which type of changes are melting, freezing, and boiling?​
tatiyna

Answer:

Adding heat.

Decreasing and increasing temperatures.

Explanation:

4 0
2 years ago
Read 2 more answers
g A and B are both non-volatile molecular compounds. Substance A has a greater molar mass than substance B. If 50 g of substance
Doss [256]

Answer:

The correct answer is - option D.  the boiling point of solution A will be lower than the boiling point of solution B

Explanation:

Colligative properties such as a decrease in the freezing point of the solution, increase in the boiling point of substance, decrease in Lowering of vapor pressure, and other properties depend upon the number of molecules only.

In the given solution the equal amount of two solutions are mixed that is 50 grams however due to the difference in the molecular mass so the atoms present in both solution A and B will be different. It is known that the number of atoms of a substance is inversely proportional to the molecular mass of the particular substance.

As it is given that Solution B has a low molecular mass which means it has a high number of atoms that means its boiling point will be higher than solution A.

8 0
2 years ago
Explain why the following medicines should not be thrown down the drains
8090 [49]
Because medications contains chemicals, it would dissolve into the water and not only would it pollute the water, it could flow out into areas where people are exposed to these waters.
7 0
3 years ago
Other questions:
  • Which of the following solids is the best insulator?
    6·2 answers
  • How would increased chlorofluorocarbons (CFCs) in the atmosphere affect the growth of vegetation throughout the world?
    8·2 answers
  • Blank of water is a physical change because boiling the water is blank from a liquid to a gas
    5·2 answers
  • Answer:
    9·2 answers
  • A solution is prepared by dissolving 40.0 g of sucrose, in 250 g of water at 25°C. What is the vapor pressure of the solution if
    12·2 answers
  • Green plants use light from the Sun to drive photosynthesis, Photosynthesis is a chemical reaction in which water (H1,0) and car
    13·1 answer
  • How many molecules are in 7V205?​
    10·1 answer
  • After James Chadwick discovered the neutron, atomic theory expanded to include isotopes. Isotopes have many practical uses. For
    11·1 answer
  • What are the characteristics of the three states of matter?<br> Solid:<br> Liquid:<br> Gas:
    12·2 answers
  • The first stage in designing your presentation is to make a list of questions that will enable you to do research. The list is d
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!