16:49Introduction to Combustion Analysis, Empirical Formula & Molecular Formula ProblemsThe Organic Chemistry Tutor940views
02:52Finding and Calculating an Empirical Formula of a Compound | How to Pass ChemistryMelissa Maribel737views2rank
11:00Empirical Formula & Molecular Formula Determination From Percent CompositionThe Organic Chemistry Tutor840views
Multiple ChoiceWhich of the following could be both a molecular formula and an empirical formula?657views
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 marshmallows431views1rank
Multiple ChoiceA 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.394views1rank
Multiple ChoiceDetermine 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.388views1rank
Multiple ChoiceA 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?404views10rank2comments
Open QuestionWhat is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen?344views
Open QuestionIn general, what does a subscript (such as the "2" in H2) tell you about the molecule?309views
Open QuestionSome 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.289views
Open QuestionA 4.08 g sample of a compound of nitrogen and oxygen contains 3.01 g of oxygen. What is the empirical formula?274views
Open QuestionWhat is the empirical formula of a compound that contains 75% Ag and 25% Cl by mass?254views1rank
Open QuestionDetermine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.298views
Open QuestionWhat is the empirical formula of a compound that contains 85 Ag and 15 F by mass?250views
Open QuestionWhich pair consists of a molecular formula and its corresponding empirical formula?297views
Open QuestionWhat is the simplest whole-number ratio of atoms in a molecule or formula unit called?318views
Open QuestionDetermine the empirical formula for a compound that contains C, H and O. It contains 52.14% C and 34.73% O by mass.329views
Open QuestionWhat is the empirical formula for a compound if a sample contains 1.0 g of S and 1.5 g of O?256views
Open QuestionA molecule of a certain compound contains two nitrogen atoms and four oxygen atoms. What is the molecular formula for this compound?337views
Open QuestionA chemist decomposes samples of several compounds; the masses of their constituent elements are listed. calculate the empirical formula for each compound.357views
Open QuestionBased on the mole ratio you determined in part c, what is the empirical formula of this compound?587views
Open QuestionA sample of an iron-containing compound is 22.0% iron, 50.2% oxygen, and 27.8% chlorine by mass.471views
Open QuestionA molecule's molecular formula and its empirical formula always share the same chemical properties633views
Open QuestionDetermine the empirical formula for a compound that contains C, H and O. It contains 52.14% C and 34.73% O by mass.336views
Open QuestionDetermine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.336views
Open QuestionThe elemental mass percent composition of succinic acid is 40.68% C, 5.12% H, and 54.19% O.298views
Open QuestionWhat is the empirical formula of a compound that contains 27.0% S, 13.4% O, and 59.6% Cl by mass?297views
Open QuestionA compound consists of 37.51 g C, 4.20 g H, and 58.29 g O. What is the empirical formula?255views
Open QuestionTo indicate the number of atoms of each element present in a molecular compound, scientists use -215views
Open QuestionWhat is the empirical formula for a compound if a sample contains 3.72 g of P and 21.28 g of Cl?248views
Open QuestionWhat is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?257views
Open QuestionWhich number indicates the number of atoms of each element in a molecule of a substance239views
Open QuestionThe elemental mass percent composition of malonic acid is 34.63% C, 3.87% H, and 61.50% O.235views
Open QuestionWhat is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?349views
Open QuestionUse subscripts to represent the number of each type of atom or ion in a molecule.228views
Open QuestionWhat is the empirical formula of a compound that contains 29% Na, 41% S, and 30% O by mass?294views
Open QuestionWhat is the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen?259views
Open QuestionWhat is the empirical formula of nitrogen chloride given that a 0.77 mg sample of nitrogen reacts with chlorine to form 6.61 mg of the chloride?1views
Open QuestionA chromium-containing compound has the formula FexCryO4 and is 28.59% oxygen by mass. Find the values of x and y.
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