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
ANEK [815]
3 years ago
9

The following question was posed on an exam:

Chemistry
1 answer:
S_A_V [24]3 years ago
8 0

Answer:

The answer given by the student is not totally correct.

Explanation:

Law of multiple proportions states that an element Q will react with different volume of Fluorine to produce two non-similar compounds. Hence, the ratio of the masses(Fluorine only) needs to be an absolute reduced value.

Given that:

3.2 g of a sample of Q reacts with Fluorine to form 10.8 g of the unknown fluoride A.

This means the mass of Fluorine present in the compound = 10.8 g - 3.2 g = 7.6 g

Thus, 3.2 g of a sample of Q reacts with 7.6 g of Fluorine.

Also, 6.4 g sample of Q reacts with Fluorine to form 29.2 g of unknown fluoride B.

If we divide the samples by (2), we have 3.2 g sample of Q reacting with Fluorine to form 14.6 g of unknown fluoride B.

This means the mass of Fluorine present in the compound = 14.6 g - 3.2 g = 11.4 g

Thus, 3.2 g Q reacted here with 11.4 g fluorine.

Hence, 11.4/7.6 = 1.5 = 3/2

This above therefore satisfies the law of multiple proportions.

This is not aligned with what the student did, what the student did was to relate the amount of Q used to make A and B. Suppose, we start with twice amount of Q, the ratio would have been smaller(i.e. the ratio of Q).

So, this doesn't relate to the law of multiple proportions.

The law of multiple proportions is specifically concerned with the mass of the element rather than Q that can react with Q. Therefore, there is more reason to relate the two samples of equal masses of Q that react with different masses of Fluorine. The ratios of Fluorine will then be small whole numbers.

You might be interested in
How many phosphate bonds are responsible for the high energy content of ATP?
Nataly_w [17]
The answer is a. one. There are three phosphate bonds in the ATP but only the first bond is responsible for the high energy. When this bond break, ATP will change to ADP.
4 0
3 years ago
Read 2 more answers
Determination of your estimate determines the BLANK<br> and BLANK<br> of a piece of equipment.
Zina [86]

Answer:

scalpel,mask

Explanation:

4 0
2 years ago
Use the diagram to determine: How many atoms are on the Right side =___ How many atoms are on the Left side = ____ Is this a Bal
Lady_Fox [76]

Answer:

on the right side two and on left side it is6 yes it is a balanced equation pls mark me as the brainliset hope it helps you

5 0
3 years ago
Please help me please i will mark you brainliest. In the nucleus of an atom, there are 17 protons and 18 neutrons. What is the a
prohojiy [21]

Answer:

i can only help with 2 :( atimic mass is: 35.453  and number of electrons is:17

Explanation:

7 0
2 years ago
SOMEONE HELP MEEEE
slavikrds [6]
These are not questions but the directions or guide to completing your assignment.

I will provide you will with a choice of concept maps you can use:

- tree map

- circle maps

-comparison map ( might be best)

Please vote my answer branliest! Thanks.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the m/m% of casein in the milk sample:​
    9·1 answer
  • Which of the following would you expect to cause the evolution of a gas when added to hydrogen peroxide? a. A piece of raw carro
    8·1 answer
  • Given: NaCl + AgNO3 -&gt; AgCl + NaNO3
    9·2 answers
  • A 0.100 M solution of K2SO4 would contain the same total ion concentration as which of the following solutions?0.0800 M Na2CO3 0
    10·1 answer
  • News shows evidence of being plagiarized
    11·1 answer
  • I need help use e picture that’s the question I’m stuck on pleassse
    5·1 answer
  • What are the two basic ways in which ions form from atoms?
    11·1 answer
  • How many formula units are in 3.15x10^-7 moles?
    7·1 answer
  • HELPPP PLEASE !/!/!/!/!/!/!/!
    9·1 answer
  • create visual representations that show the interactions between the particles in both samples during vaporization
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!