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
vekshin1
3 years ago
13

what is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g​

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

Answer:

K8S4O16 or K8(SO4)4 depending on if the SO4 is supposed to represent sulfate or not

Explanation:

Find the molar mass of K2SO4 first:

2K + S + 4O ≈ 174 g/mol

Divide the goal molar mass of 696 by the molar mass of the empirical formula:

696 / 174 = 4

This means you need to multiply everything in the empirical formula by 4:

K2SO4 --> K8S4O16 or K8(SO4)4 depending on if the SO4 is for sulfate or not

You might be interested in
Right ground state electron configuration for these ions which play important roles and biochemical process in our bodies. (use
lesya692 [45]
I think the answer is d.
3 0
3 years ago
Please help y’all I don’t understand
gulaghasi [49]

Answer:

6 electrons

Explanation:

7 0
3 years ago
Read 2 more answers
Three beakers contain clear, colorless liquids. one beaker contains pure water, another contains salt water, and another contain
tiny-mole [99]
First, we'll identify the beaker containing pure water as follows:
We'll take equal masses from each of the three beakers and measure the mass of each.
We'll then identify the density of each by using the rule : density =mass/volume
Pure water will be the liquid having density equal to 1 gm/cm^3

Then, we'll differentiate between the salt and sugar solution by measuring the conductivity of each solution. Salt solution is a good conductor while solution of sugar is a bad conductor.
8 0
4 years ago
The combining of two atomic nuclei to produce one larger nucleus is called
Naddika [18.5K]
C.
Nuclear fission involves the high energy collision of two atomic nuclei to produce one larger nucleus; this process powers stars.
6 0
4 years ago
Assume that the batteries in a flashlight are rechargeable. What energy conversion would have to take place in order to recharge
zaharov [31]

Electrical to chemical energy

Explanation:

If the batteries in a flashlight are rechargeable, the energy conversion that would take place to recharge the battery is from electrical to chemical energy.

  • A battery is an electrochemical cell in which chemical reactions produces electrical currents.
  • This is a typical energy conversion from chemical to electrical energy.
  • When such batteries are to be recharged, the revere process is followed.
  • Electrical energy are used to drive chemical reactions.
  • This in turn makes the battery recharged and on its own, it can further chemical reactions to produce electrical energy.
  • During charging, the potential of the battery increases.

learn more:

Electrochemical reactions brainly.com/question/12174850

#learnwithBrainly

7 0
4 years ago
Other questions:
  • Students tested an unknown solution with a pH meter. The meter indicated that the solution has a pH of 10.3. Based on this infor
    13·1 answer
  • A compound is 40% carbon, 6.7% hydrogen, and 53.3% oxygen. What is the empirical formula?
    7·2 answers
  • In which type of chemical reaction due to a more reactants combined to form one product only
    6·2 answers
  • Could you freeze Acid? Explain :3
    12·1 answer
  • Iron filings are placed in powdered sulfur. Both iron and sulfur are elements. The iron and sulfur are stirred together until th
    8·1 answer
  • Which system of measurement does the U.S. use?????
    6·1 answer
  • The specific heat of a substance is the energy required to produce a certain change in _____________. A. state B. appearance C.
    10·1 answer
  • PLEASE! <br> SEE ATTACHED.
    10·1 answer
  • If a metal donates or loses an electron it becomes a..<br> A. Ionic<br> B. Covalent<br> C. Metallic
    6·2 answers
  • When a 0.764 g almond is burned, it heats 225 mL of water from 14.8oC to 18.4oC. Calculate the heat of combustion of the almond
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!