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
melamori03 [73]
3 years ago
13

What is the percent composition of Ca(C2H3O2)2?

Chemistry
2 answers:
Makovka662 [10]3 years ago
7 0

Answer:

a) 25.3% Ca, 30.4% C, 3.8% H, 40.5% O

Explanation:

Molar mass of Ca(C₂H₃O₂)₂  = 158.160 g/mol

percent composition:

Ca = (40 /158.160 ) × 100

Ca = 25.3%

C = (48 /158.160 ) × 100

C = 30.4%

H = (6 /158.160 ) × 100

H = 3.8%

O = (64 /158.160 ) × 100

O = 40.5%

40.5% + 3.8% + 30.4% + 25.3% = 100%

It means 1st option is correct.

Fynjy0 [20]3 years ago
6 0

Answer:

A

Explanation:

RMM of ca(c2h302)2=158

%Ca= 40/158×100=25.3

%C=48/158×100=30.3

%H=6/158×100=3.7

%O=64/158×100=40.5

You might be interested in
What are the chemical properties of iron meta
kari74 [83]

Answer:

Physical properties

Atomic mass: 55.845

Density: 7.87 g/cm3

Group: Transition metals

Electrons: [Ar] 3d6 4s2

Melting point: 1811 K

Boiling point: 3134 K

Discovered: Ancient times

Explanation:

hope this helps! :D

3 0
3 years ago
Arrange the core steps of the scientific method in sequential order
Sloan [31]
HOMER - <span>hypothesize, operationalize, measure, evaluate, and replicate/revise/report."</span>
7 0
3 years ago
Read 2 more answers
D IS A SOLUTION CONTAINING 4.9G/DM³ OF H²SO⁴. E CONTAINS IMPURE SAMPLE OF KOH PER DM³ OF SOLUTION. THE VOLUME OF D IS 25CM³ WHIL
rosijanka [135]
No estoy segura la verdad
8 0
3 years ago
Which statement correctly describes the nucleus of the atom?
Dmitrij [34]

Answer:

llllllllllkkkll

(Answer:D)

3 0
3 years ago
A student lost part of his lab notebook and didn’t know what the original measure should have been. He knows that he calculated
igor_vitrenko [27]
Answer:

21.1cm or 10.1cm

Explanation:

Since the percent error is 35.5% and the experimental measurement was 15.6cm, the two possible values for the actual measurement are 15.6 plus 35.5% of 15.6 or 15.6 minus 35.5% of 15.6.

This is this:

15.6 + (0.355 x 15.6)
= 15.6 + 5.54
= 21.1cm

Or this:

15.6 - (0.355 x 15.6)
= 15.6 - 5.54
= 10.1cm
6 0
3 years ago
Other questions:
  • The empirical formula of a compound is CH. At 200 degree C, 0.145 g of this compound occupies 97.2 mL at a pressure of 0.74 atm.
    11·1 answer
  • Which of the following is an impact of an increase in motor vehicles in cities?
    8·2 answers
  • What makes carbon monoxide
    12·2 answers
  • Using the method of initial rates for the reaction a → b, if the initial concentration of a is doubled and the rate of reaction
    9·1 answer
  • The atomic mass of an atom can be found by
    5·1 answer
  • sample of saline contains 45 ml of saline in 128 ml of water. What is the percent by volume of the solution?
    8·1 answer
  • what is the molecular formula of the molecule that has an empirical formula of CH2Cl and a molar mass of 247.5 g/mol?
    10·1 answer
  • Which compound has both ionic and covenant bonds
    12·1 answer
  • What is the relationship<br>between different forms of energy?​
    5·2 answers
  • PLEASE HELP WILL MARK AS BRAINLEST
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!