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
ololo11 [35]
3 years ago
13

A compound is 2.00% H by mass, 32.7% S by mass, and 65.3% O by mass. What is its empirical formula? The first step is to calcula

te the mass of each element in a 100-g sample of the compound. We use 100 g because it makes the calculations more straightforward. What is the mass of each element in a 100.0-g sample of the compound? mass H = g mass S = g mass O = g
Chemistry
2 answers:
Georgia [21]3 years ago
7 0
For a 100-g compound, we would have 2 g H, 32.7 g S, and 65.3 g O. We then divide each of these masses by their molar masses:
2 g H / 1.01 g/mol = 1.98 mol H
32.7 g S / 32.07 g/mol = 1.0196 mol S
65.3 g O / 16.00 g/mol = 4.08125 mol O
We then divide each amount of moles by the smallest of them, which is the 1.0196 from S:
1.98 mol H / 1.0196 mol S = 1.94 H ~ 2 H
1.0196 mol S / 1.0196 mol S = 1 S
4.08125 mol O / 1.0196 mol S = 4 O
So the empirical formula of the compound is H2SO4.
anygoal [31]3 years ago
4 0

Answer:

2.00

32.7

65.3

in order

Explanation:

You might be interested in
What energy conversion occurs when a battery powered car rolls across the floor ?
pishuonlain [190]
The battery itself contains chemical energy, which is converted to electrical energy, and then converted to mechanical energy. 
6 0
3 years ago
Read 2 more answers
How does water heat Earth?
nata0808 [166]

Answer:

I hope it's helpful for you...

Explanation:

water traps heat and holds it deep inside the ocean .....

I think it's correct answer

5 0
3 years ago
Read 2 more answers
Sodium bicarbonate is reacted with concentrated hydrochloric acid at 37.0 °c and 1.00 atm. The reaction of 6.00 kg of bicarbonat
aleksklad [387]

Answer:

1837.89 Lt

Explanation:

The chemical reaction for this situation is:

NaHCO₃ + HCl → NaCL + H₂O + CO₂ ₍g₎

Where the mola mass we need are:

M NaHCO₃ = 84 g/mol

M CO₂ = 44 g/mol

As we have 6.00 Kg of sodium bicarbonate, then:

6 Kg NaHCO₃ = 71.43 moles of NaHCO₃

Due the stoichiometry of this chemaicl reaction:

1 mol NaHCO₃ = 1 mol CO₂

71.43 moles NaHCO₃ = 71.43 moles CO₂

And considering that CO₂ is an ideal gas, we can use the following formula:

PV=nRT

V = (nRT)/P

n = 71.43 mol

R = 0.083 Ltxatm(molxK)

T = 37°C = 310 K

P = 1 atm

So: V = (71.43x0.083x310)/1

V CO₂ = 1837.89 Lt

4 0
3 years ago
Read 2 more answers
Consider the diagram. Which postulate of the kinetic-molecular theory best describes the event in the diagram?
MatroZZZ [7]

Answer : Option B) All collisions between particles are perfectly elastic.

Explanation : Gases consits of molecules which are compressible because the gas particles which have a small volume compared to the container.

The collisions are perfectly elastic because when gases are left alone in a container they don't seem to lose energy and do not spontaneously get converted into a liquid, also energy is not lost during collisions.

In the diagram given above one can interpret that the gaseous molecules are in random motion inside the container and when they collide with other molecule of gas they do not lose energy. Therefore, this shows perfectly elastic collisions.

3 0
4 years ago
Read 2 more answers
Which of the following is an example of an exothermic reaction?
WINSTONCH [101]
D but I’m not to sure about it
4 0
3 years ago
Other questions:
  • Can someone tell me how to do this steps by step<br>How many grams is there in 3.65 moles of CuSO4
    8·1 answer
  • A sample of a gas has a pressure of 248mm Hg when the volume is 1.05L. What is the pressure of the gas when the volume is 3.98L?
    7·2 answers
  • What is the atomic mass of nitrogen
    9·1 answer
  • During El Niño years, why is Christchurch, New Zealand’s temperature cooler than usual?
    11·1 answer
  • Set up the ion formation equations, with ionization energy values for each electron in the valence layer, of the atoms of the ch
    10·1 answer
  • A pressure of 10Nm -2 is equal to ?​
    14·1 answer
  • 7 Think about a large pile of rocks. The rock at the top of the pile has more
    12·1 answer
  • Water and carbon dioxide are both made of 3 atoms<br> True or false
    6·1 answer
  • Nucleolus what is a nucleolus<br><br>​
    13·1 answer
  • 20. A substance with a high volatility A. has a high boiling point. B. tends to stay in the liquid or solid phase. C. readily ev
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!