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
faltersainse [42]
3 years ago
10

What is the empirical formula for a compound that is 29.44\% calcium, 23.55% sulfur, and 47.01% oxygen? This compound is a commo

n ingredient in plaster
Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

Empirical formula is CaSO₄.

Explanation:

Given data:

Percentage of calcium =29.44%

Percentage of sulfur = 23.55%

Percentage of oxygen = 47.01%

Empirical formula = ?

Solution:

Number of gram atoms of Ca = 29.44 / 40 = 0.74

Number of gram atoms of S = 23.55 / 32 = 0.74

Number of gram atoms of O = 47.01 / 16 = 3

Atomic ratio:

            Ca                      :        S                :         O

           0.74/0.74           :     0.74/0.74      :       3/0.74

               1                     :          1              :          4

Ca : S : O = 1 : 1 : 4

Empirical formula is CaSO₄.

You might be interested in
If the forward reaction is favored in the equilibrium, what will increase?
Lorico [155]

Answer:

Option C:- concentration of products

Explanation:

According to Le Chateleir's principle,

if the forward reaction is favored in the equilibrium then concentration of products will increase and concentration of reactants will decrease.

If the reverse reaction is favored in the equilibrium then concentration of products will decrease and concentration of reactants will increase.

5 0
4 years ago
What does the abreviation asa stand for chemically?.
leonid [27]

Answer:

Acrylonitrile Styrene Acrylate

3 0
2 years ago
Plz help!<br><br> What needs to be added or taken away to cause a change in state?
stepladder [879]

Answer:

One change of state happens when you add energy to the substance. This change of state is called melting. By adding energy to the molecules in a solid the molecules begin to move quicker and can break away from the other molecules.

4 0
4 years ago
List four physical properties of a glass of milk
aniked [119]
Its white
It has temperature
It has density and 
It has volume! :) 
8 0
4 years ago
Read 2 more answers
Z forms chloride compounds with the formulae ZCl2 and ZC13.
nordsb [41]

Answer:

(B) II, IV.

hope this answer is helpful for u.

3 0
3 years ago
Other questions:
  • Lead is a toxic substance. the "normal" lead content in human blood is about 0.40 part per million (that is, 0.40 g of lead per
    11·1 answer
  • What has 20 electrons in 44 Mass
    11·2 answers
  • What is the charge of the nucleus of an atom
    13·1 answer
  • ¿Cómo afectaría la velocidad de una reacción si se enfría lentamente la mezcla de los reactivos? AYUDA
    15·1 answer
  • The force between two atoms is the result of _____________________ repulsion, nucleus-nucleus ________________, and nucleus-elec
    6·1 answer
  • Why do your body and your cells need water?
    12·1 answer
  • Stars in the sky appear to be moving. What do we call this conclusion that is based on observations, clues, or evidence?(2 point
    11·2 answers
  • Which of these is true about pure substances?
    5·2 answers
  • What product(s) would be formed when these are the reactants? C5H12 + O2 (limited)
    9·1 answer
  • Hydrogen gas and nitrogen gas can react to form ammonia according to the following equation N2 (g) + 3H2 (g) 2NH3(g)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!