Chemistry, 24.06.2019 07:00 allendraven89pds755

Determine the empirical formula of the following compound if a sample contains 0.104 molk, 0.052 molc, and 0.156 molo; ?

Answers: 2

Show answers

Answers

Answer from: theojw

K₂CO₃

Explanation:

Given parameters:

Number of moles of K = 0.104mol

Number of moles of C = 0.052mol

Number of moles of O = 0.156mol

Method

From the given parameters, to calculate the empirical formula of the elements K, C and O, we reduce the given moles to the simplest fraction.

Empirical formula is the simplest formula of a compound and it differs from the molecular formula which is the actual formula of a compound.

Divide the given moles through by the smallest which is C, 0.052mol. Then approximate values obtained to the nearest whole number of multiply by a factor to give a whole number ratio. This is the empirical formula

Solution

Elements K C O

Number of moles 0.104 0.052 0.156

Dividing by the

smallest 0.104/0.052 0.052/0.052 0.156/0.052

2 1 3

The empirical formula is K₂CO₃

Answer from: Quest

You would be correct, boiling water does disinfect contamination. the property of disinfecting means to kill germs, bacteria and other pathogens or contamination that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate. the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Answer from: Quest

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic

Another question on Chemistry

Chemistry, 22.06.2019 04:00

The rules of engagement (roe) working group is often used to (select all that apply.)

Answers: 2

Answer

Chemistry, 22.06.2019 06:30

What effect might melting sea ice have for people who live in coastal areas?

Answers: 1

Answer

Chemistry, 22.06.2019 07:30

How many atoms are there in 5.70 mol of mg

Answers: 2

Answer

Chemistry, 22.06.2019 21:20

Juju.01) 5 geologic events a group of students designed an experiment in an ice rink to represent the solar system. the steps of the experiment are listed below. 5: geologic events 1. choose a student to represent the sun. the planets are represented by two tennis balls. 2. ask the student to hold the tennis balls in each palm and spin on the ice with arms stretched out. 3. ask the student to draw in the arms after about 10 spins. 4. observe the student's arms rotate faster when they are closer to the body. 05 geologic events enors) the experiment most likely demonstrates that (2 points) 07 discussion-based sessment/module planets exert gravitational force on the sun the sun exerts gravitational force on the planets 3.07 discussion-based ssessment speed of a planet depends on its distance from the sun new version available! (3.0.119) get it now submit 18.07: module exam description

Answers: 3

Answer

You know the right answer?

Determine the empirical formula of the following compound if a sample contains 0.104 molk, 0.052 mol...

Questions