3. Chemical Reactions

7 graham crackers, 6 pieces of chocolate, and 5 marshmallows

A chemist wishing to identify a compound determines the masses of its elements as: 1.445 g S and 6.391 g Cl. Determine its empirical formula.

Determine the simplest form of a compound made up of carbon, hydrogen, nitrogen and oxygen if it is made of 49.48% C, 5.19% H and 16.48% O.

A compound composed of potassium, manganese and oxygen contains 3.12 g potassium and 1.922 x 10²³ oxygen atoms. If a sample of the compound weighs 12.61 g determine its empirical formula?

What is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen?

In general, what does a subscript (such as the "2" in H₂) tell you about the molecule?

How many atoms of oxygen are in the chemical formula 2Ca(ClO₂)₂?

Some of the formulas below could be either molecular or empirical formulas; however, some could only be molecular formulas. Which of the following formulas must be molecular formulas? Select all that apply.

Which of the following is an empirical formula?

A 4.08 g sample of a compound of nitrogen and oxygen contains 3.01 g of oxygen. What is the empirical formula?

What is the empirical formula of a compound that contains 75% Ag and 25% Cl by mass?

Determine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.

Calculate the empirical formula for each compound