Empirical Formula
Molecular Formula
Empirical and Molecular
Chemistry
General Knowledge
100

What is the Empirical formula?

Empirical formulas tell you the simplest or most reduced ratio of elements in a compound.

100

What is the molecular formula?

Molecular formulas tell you how many atoms of each element are in a compound.

100

What is the difference between empirical and molecular formulas?

Molecular formulas tell you how many atoms of each element are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a compound.

100

Who created the first periodic table?

Dmitri Mendeleev

100

Who is the first man on the moon?

Neil Armstrong

200

Why is the empirical formula important?

Empirical formulas are important in chemistry because they demonstrate the relationship between the number of each element's atoms in a molecule.

200

Why is molecular formula important?

It gives the exact number of atoms in a compound.

200

What is the relation between empirical formula and molecular formula?

The empirical formula represents only the atomic ratio of the various elements present in its molecule. The molecular formula of a compound is the chemical formula that represents the true formula of its molecules.

200

Who discovered noble gases.

Sir William Ramsay 

200

What exists more, doors or wheels?

WHEELS !!!!

300

Two examples of empirical formula.

NH2O

H2O

300

Two examples of molecular formula.

P4O10

C10H22

C6H18O3

300

Convert C10H22 to empirical. 

C5H11

300

List 5 elements from the D block. 

"any transition element"

300

Who is the president of Ukraine?

Volodymyr Zelensky

400

4 examples of the empirical formula.

NH2O

H2O

HO

CH

400

4 examples of molecular formula.

P4O10

C10H22

C20O10

C6H18O3

400

Convert C22O14H2Ca4 to empirical.

C11O7HCa2

400

What is Avogadro's number? 

6.022 x 10^23
400

How much does a big mac cost?

43 L.E

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