Multiple Choice
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.
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3. Chemical Reactions
Empirical Formula
Back3. Chemical Reactions
Empirical Formula
- Open Question
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.
1views - Multiple ChoiceIn order to make 1 s’ more, you need 2 graham crackers, 1 piece of chocolate, and 1 marshmallow. How many s’mores can be made from the following ingredients?
7 graham crackers, 6 pieces of chocolate, and 5 marshmallows
13views - Multiple ChoiceWhat is the empirical formula of acetic acid, CH3COOH?
- Multiple Choice
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?
15views1rank - Open QuestionAn example of an empirical formula is
- Open QuestionA chemist decomposes samples of several compounds; the masses of their constituent elements are listed. calculate the empirical formula for each compound.
- Multiple ChoiceWhat is the empirical formula for a compound containing 34.4% ethylenediamine, 2.101% Ni, 3.44% sulfate, and 60.06% water by mass?
- Open QuestionWhat are the subscripts in the empirical formula of this compound?
- Multiple ChoiceIn an experiment, 10.0 g of sulfur and 10.0 g of oxygen react completely to form an oxide of sulfur. What is its empirical formula?
- Open Question
A 4.08 g sample of a compound of nitrogen and oxygen contains 3.01 g of oxygen. What is the empirical formula?
3views - Open QuestionA sample of an iron-containing compound is 22.0% iron, 50.2% oxygen, and 27.8% chlorine by mass.
- Multiple ChoiceAn unknown compound contains only carbon, hydrogen, and chlorine. Using combustion analysis, you burned 22.56 mg of the sample and collected 7.11 mg of H2O and 52.93 mg of CO2. What is the empirical formula of this compound?
- Open Question
What is the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen?
- Open Question
To indicate the number of atoms of each element present in a molecular compound, scientists use -