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
Anon25 [30]
2 years ago
15

3. Two different compounds are formed by the elements carbon and oxygen. The first compound contains 42.9% by mass carbon and 57

.1% by mass oxygen. The second compound contains 27.3% by mass carbon and 72.7% by mass oxygen. Show that the data are consistent with the law of multiple proportions.​
Chemistry
1 answer:
mars1129 [50]2 years ago
5 0

Answer:

The law of multiple proportions is the third postulate of Dalton's atomic theory. It states that the masses of one element which combine with a fixed mass of the second element are in a ratio of whole numbers.

Therefore, the masses of oxygen in the two compounds that combine with a fixed mass of carbon should be in a whole number ratio. In 100 grams of the first compound (100 is chosen to make calculations easier), there are 57.1 grams oxygen and 42.9 grams carbon. The mass of oxygen (O) per gram of carbon (C) is:

57.1 g O / 42.9 g C = 1.33 g O per g C

In the 100 grams of the second compound, there are 72.7 grams of oxygen (O) and 27.3 grams of carbon (C). The mass of oxygen per gram of carbon is:

72.7 g O / 27.3 g C = 2.66 g O per g C

Dividing the mass O per g C of the second (larger value) compound:

2.66 / 1.33 = 2

This means that the masses of oxygen that combine with carbon are in a 2:1 ratio. The whole-number ratio is consistent with the law of multiple proportions.

Explanation:

You might be interested in
How many molecules are in 100 g of C6H1206?
rjkz [21]

Answer: 100 grams of glucose represents 0.55 moles .

Explanation:

8 0
3 years ago
What is the mass of 0.46 mol of MgCl2
Ronch [10]

Answer:

43.7

Explanation:

mole is equal mass concentration/ moler mass of MgCl²

8 0
3 years ago
Does seasonal temperature affect tides?
hodyreva [135]
The last on experimental
7 0
3 years ago
Read 2 more answers
If you start with 1.000 gram sample of the isotope how much time would pass before you have just 0.100 grams of the isotope left
Vadim26 [7]

Answer:

So, you're dealing with a sample of cobalt-60. You know that cobalt-60 has a nuclear half-life of

5.30

years, and are interested in finding how many grams of the sample would remain after

1.00

year and

10.0

years, respectively.

A radioactive isotope's half-life tells you how much time is needed for an initial sample to be halved.

If you start with an initial sample

A

0

, then you can say that you will be left with

A

0

2

→

after one half-life passes;

A

0

2

⋅

1

2

=

A

0

4

→

after two half-lives pass;

A

0

4

⋅

1

2

=

A

0

8

→

after three half-lives pass;

A

0

8

⋅

1

2

=

A

0

16

→

after four half-lives pass;

⋮

Explanation:

now i know the answer

6 0
2 years ago
Identify the formula for an alkene.
ioda

Answer:

CnH2n-2

im pretty sure thats the answer

5 0
2 years ago
Other questions:
  • The volume density of atoms for a bcc lattice is 5 x 1026 m-3. Assume that the atoms are hard spheres with each atom touching it
    14·1 answer
  • The rate for a reaction between reactants l, m, and n is proportional to the cube of [l] and the square of [m]. what is the rate
    7·1 answer
  • Jenny wants to test the electrical conductivity of two substances dissolved in water. She is preparing the containers for the ex
    9·1 answer
  • What is the mass of 0.513 mol Al2O3? Give your answer to the correct number of significant figures. (Molar mass of Al2O3 = 102.0
    6·2 answers
  • Which energy transformation occurs when an
    11·1 answer
  • T(K) means the temperature in the unit Kelvin. T(C) means the temperature in Celsius. If T(K) = T(C) + 273, and the current temp
    12·1 answer
  • Substance A is mixed with water and donates 0.4% of its H+ ions. Which of the following BEST describes Substance A? (See picture
    14·1 answer
  • Write the formulas for the following ionic compounds.
    15·1 answer
  • How many moles are present in a sample of HCI with a mass of with a mass of 3.65g?
    9·2 answers
  • for each compound write a complete reaction equation showing the removal of the atoms that become the water molecule
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!