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
2 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]2 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
research to obtain more information about where we get our fuel supply.Evaluate and communicate how technology affects the suppl
elena-s [515]

Answer:

hola como estas

Explanation:

4 0
3 years ago
If a reaction vessel initially contains 5 mol S and 10 mil O2, how many moles of S will be in the reaction vessel once the react
Alex_Xolod [135]

Answer:

Explanation:

2S       +       3O₂       =       2SO₃

2moles      3 moles

2 moles of S react with 3 moles of O₂

5 moles of S will react with 3 x 5 / 2 moles of O₂

= 7.5 moles of O₂ .

O₂ remaining unreacted = 10 - 7.5 = 2.5 moles .

All the moles of S will exhausted in the reaction and 2.5 moles of oxygen will be left .  

6 0
3 years ago
A 30.0 mL sample of 0.200 M Ba(OH)2 is titrated with 0.100 M HCl.
Phantasy [73]

Answer:

what's the question? is it A

7 0
3 years ago
PLEASE HELP 100 POINTS
OleMash [197]

Answer:

Hexenes + Dioxygen = Carbon Dioxide + Water

The reaction type is combustion.

Its reactants are Hexenes - C6H12 and Dioxygen - O2

its products are Carbon Dioxide - CO2 and Water - H2O

Explanation: This was my yesterdays class

3 0
2 years ago
Brainliest grind of 2014i-
aksik [14]

Answer:

IM just too pogchamp

Explanation:

5 0
3 years ago
Other questions:
  • A ____________ is a chemical solution that keeps ph within normal limits by absorbing excess hydrogen, or h+, ions and hydroxide
    5·2 answers
  • What is the change in heat energy when 114.32g of water at 14.85oC is raised to 18.00oC?
    12·1 answer
  • Which of the following best describes a mixture in which ionic compounds are dissociated in solution?
    8·2 answers
  • Technetium has a half-life of six hours. If you obtain 100g of a pure technetium sample, after 18 hours how much of the pure sub
    14·1 answer
  • How do you do Number 4​
    6·1 answer
  • Light energy is energy in movement of <br>​
    15·1 answer
  • Use the particle theory to describe each of the three states of matter.
    5·1 answer
  • What type of reaction is 4Na + O2 --&gt; 2Na2O?
    9·1 answer
  • Covalent compounds are generally not very hard. Justify the statement.
    8·1 answer
  • Electrons are shared. Is it Ionic bond, covalent bond or both?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!