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
PilotLPTM [1.2K]
3 years ago
8

The combustion of 2.95 grams of a compound that contains only C, H and S yields 5.48

Chemistry
1 answer:
lesya692 [45]3 years ago
4 0

The empirical formula of the compound is C₃H₃S.

Explanation:

molecular weight of CO₂ = 44 g/mole

molecular weight of H₂O = 18 g/mole

Knowing the molecular weights of the compounds we devise the following reasoning:

if in           44 g of CO₂ there are 12 g of C

then in  5.48 g of CO₂ there are X g of C

X = (5.48 × 12) / 44 = 1.49 g C

if in           18 g of H₂O there are 2 g of H

then in    1.13 g of H₂O there are Y g of H

Y= (1.13 × 2) / 18 = 0.126 g H

mass of compound = mass of C + mass of H + mass of S

mass of S = mass of compound - mass of C - mass of H

mass of S = 2.95 - 1.49 - 0.126 = 1.33 g S

Now to find the empirical formula of the compound we use the fallowing algorithm:

we devise each mass by the molar weight of the element:

for C   1.49 / 12 = 0.124

for H   0.126 / 1 = 0.126

for S   1.33 / 32 = 0.0416

now we divide the result by the lowest number which is 0.0416

for C    0.124 / 0.0416 ≈ 3

for H    0.126 / 0.0416 ≈ 3

for S    0.0416 / 0.0416 = 1

The empirical formula of the compound is C₃H₃S.

Learn more about:

empirical formula

brainly.com/question/1247523

brainly.com/question/5297213

brainly.com/question/10044173

#learnwithBrainly

You might be interested in
During natural selection, which organisms are most likely to survive as the environment changes?
ANEK [815]

Are there any choices to your question? If so what are they? Then I can answer. :)

4 0
3 years ago
Wat is diffrent from a square and trapisode
Vikki [24]
The main difference between a square and a trapezoid is that a square has two pairs of parallel sides, while a trapezoid only has one
4 0
3 years ago
PLEASE HELP ME ASAPPPP
sattari [20]
Boyle’s law gives the relationship between pressure and volume of gases. It states that at constant temperature the pressure of gas is inversely proportional to volume of gas.
PV = k
Where P is pressure V is volume and k is constant
P1V1 = P2V2
Parameters at STP are on the left side and parameters for the second instance are on the right side of the equation
P1 - standard pressure - 1.0 atm
Substituting the values in the equation
1.0 atm x 5.00 L = P x 15.0 L
P = 0.33 atm
New pressure is 0.33 atm
5 0
3 years ago
Which of the following is a product when Na2O and H2O react together? (2 points)
TiliK225 [7]
The correct answer is NaOH
5 0
3 years ago
Read 2 more answers
Um exemplo de força elétrica.
evablogger [386]

Answer:

la carga en una bombilla

7 0
3 years ago
Read 2 more answers
Other questions:
  • The equilibrium reaction below has the Kc = 0.254 at 25°C. If the temperature of the system at equilibrium is decreased to 0°C,
    14·1 answer
  • Explain the resonance structures for the sulfite ion, SO32_.
    12·1 answer
  • Brainiest if answered in the next 5m
    15·1 answer
  • Among the following, which element has the lowest ionization energy? Question 2 options: Cs Na Cl I
    13·2 answers
  • why do liquids flow? the particles are tightly packed together the particles do not move the particles vibrate the particles are
    13·1 answer
  • Find concentration of each ions:<br> 600.0 ml of solution containing 1.50 grams of Cr(NO3)2
    6·1 answer
  • Define calories and how the body gets energy
    6·1 answer
  • I really need help with this assignment
    7·1 answer
  • i'm reasking this, i need help with this and it's due today. the answer isn't 30,240 minutes, it's the blanks i need filled in :
    5·1 answer
  • Which of these electron transitions correspond to absorption of energy and which to emission?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!