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
noname [10]
2 years ago
11

A sample of a compound is determined to have 1.17 g of carbon and 0.287 g of hydrogen. what is the correct representation of the

empirical formula for the compound?
Chemistry
1 answer:
yarga [219]2 years ago
5 0

CH3 is the empirical formula for the compound.

A sample of a compound is determined to have 1.17g of Carbon and 0.287 g of hydrogen.

The number of atom or moles in the compound is

1.17 g C X  1 mol of C / 12.011 g C = 0.097411 mol of C.

0.287 g H x 1 mol of  H / 1 g H = 0.28474 mol H.

This compound contains 0.097411 mol of carbon and 0.28474 mol of Hydrogen.

So we can represent the compound with the formula C0.974H0.284.

Subscripts in formulas can be made into whole numbers by multiplying the smaller subscript by the larger subscript.

we can divide 0.284 by 0.0974.

0.284 / 0.0974 = 3.

So here, Carbon is one and hydrogen is 3.

We can write the above formula as a CH3.

Hence the empirical formula for the sample compound is CH3.

For a detailed study of the empirical formula refer given link brainly.com/question/13058832.

#SPJ1.

You might be interested in
Coal is a fossil fuel which is used to produce electricity. Which of these statements best describes an outcome of coal mining o
Mumz [18]
It becomes rich in minerals
7 0
3 years ago
Read 2 more answers
Swer questions 12 B D 12 Classify each model A-D as either an ele- ment, a compound, or a mixture. Explain your reasoning for ea
MrRissso [65]

Answer:

13-b

Explanation:

because 13-b is close to a and 12

3 0
3 years ago
What element has 31 protons and 37 neutrons?
Vlada [557]
The answer is going to be  Rubidium. hope that helped
6 0
3 years ago
Which of the following might be included in a chemical
kow [346]

Answer:

b) ions

Explanation:

4 0
3 years ago
A bottle containing air is initially at a temperature of 33 degrees C and a pressure of 0.81 atm. After being placed in the free
Georgia [21]

Answer:

The final pressure is 0.725 atm.

Explanation:

Gay Lussac's Law establishes the relationship between pressure and temperature of a gas when the volume is constant. This law says that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. That is, pressure and temperature are directly proportional quantities.

Mathematically, Gay-Lussac's law states that, when a gas undergoes a constant volume transformation, the quotient of the pressure exerted by the gas temperature remains constant:

\frac{P}{T}  =k

When analyzing an initial state 1 and a final state 2, the following is satisfied:

\frac{P1}{T1}  =\frac{P2}{T2}

In this case:

  • P1= 0.81 atm
  • T1= 33 C= 306 K
  • P2= ?
  • T2= 1 C= 274 K

Replacing:

\frac{0.81 atm}{306 K}  =\frac{P2}{274 K}

Solving:

P2=274 K*\frac{0.81 atm}{306 K}

P2= 0.725 atm

<u><em>The final pressure is 0.725 atm.</em></u>

4 0
3 years ago
Other questions:
  • Solution A has a concentration of 3 M. If solution B is 5 times more concentrated than A what is it’s concentration?
    15·1 answer
  • What is the best description of the relationship between emerging scientific ideas and open-mindedness?
    12·1 answer
  • Explain the roles of products, reactants, and limiting reactant in a chemical reaction.
    13·1 answer
  • Find the pH of a solution whose H concentration is 0.7 x 10-3.
    15·1 answer
  • What is the volume of 1.0 mole of hydrogen gas at standard temperature and pressure ?
    12·2 answers
  • Hello please help me on this problem thanks.sc​
    5·1 answer
  • 5) Chlorine has 7 valence electrons. Neon has 8 valence electrons. Which on is more likely to undergo a
    14·1 answer
  • Which of the following forms of invisible light, would have the highest wavelength?
    6·1 answer
  • The diagram above represents the melting of H2O(s). A 2.00mole sample of H2O(s) at 0°C melted, producing H2O(l) at 0°C. Based on
    10·1 answer
  • Calculate the precise Molar Mass of NH3 and calculate the moles in 50.0<br> grams.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!