16:49Introduction to Combustion Analysis, Empirical Formula & Molecular Formula ProblemsThe Organic Chemistry Tutor932views
02:52Finding and Calculating an Empirical Formula of a Compound | How to Pass ChemistryMelissa Maribel728views2rank
11:00Empirical Formula & Molecular Formula Determination From Percent CompositionThe Organic Chemistry Tutor823views
Multiple ChoiceWhich of the following could be both a molecular formula and an empirical formula?652views
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 marshmallows424views1rank
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.384views1rank
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.374views1rank
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?389views9rank2comments
Open QuestionWhat is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen?335views
Open QuestionIn general, what does a subscript (such as the "2" in H2) tell you about the molecule?304views
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.279views
Open QuestionA 4.08 g sample of a compound of nitrogen and oxygen contains 3.01 g of oxygen. What is the empirical formula?267views
Open QuestionWhat is the empirical formula of a compound that contains 75% Ag and 25% Cl by mass?251views1rank
Open QuestionDetermine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.289views
Open QuestionWhat is the empirical formula of a compound that contains 85 Ag and 15 F by mass?243views
Open QuestionWhich pair consists of a molecular formula and its corresponding empirical formula?290views
Open QuestionWhat is the simplest whole-number ratio of atoms in a molecule or formula unit called?309views
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.318views
Open QuestionWhat is the empirical formula for a compound if a sample contains 1.0 g of S and 1.5 g of O?248views
Open QuestionA molecule of a certain compound contains two nitrogen atoms and four oxygen atoms. What is the molecular formula for this compound?332views
Open QuestionA chemist decomposes samples of several compounds; the masses of their constituent elements are listed. calculate the empirical formula for each compound.349views
Open QuestionBased on the mole ratio you determined in part c, what is the empirical formula of this compound?582views
Open QuestionA sample of an iron-containing compound is 22.0% iron, 50.2% oxygen, and 27.8% chlorine by mass.460views
Open QuestionA molecule's molecular formula and its empirical formula always share the same chemical properties624views
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 QuestionDetermine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.330views
Open QuestionThe elemental mass percent composition of succinic acid is 40.68% C, 5.12% H, and 54.19% O.292views
Open QuestionWhat is the empirical formula of a compound that contains 27.0% S, 13.4% O, and 59.6% Cl by mass?288views
Open QuestionA compound consists of 37.51 g C, 4.20 g H, and 58.29 g O. What is the empirical formula?248views
Open QuestionTo indicate the number of atoms of each element present in a molecular compound, scientists use -211views
Open QuestionWhat is the empirical formula for a compound if a sample contains 3.72 g of P and 21.28 g of Cl?244views
Open QuestionWhat is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?247views
Open QuestionWhich number indicates the number of atoms of each element in a molecule of a substance231views
Open QuestionThe elemental mass percent composition of malonic acid is 34.63% C, 3.87% H, and 61.50% O.231views
Open QuestionWhat is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?339views
Open QuestionUse subscripts to represent the number of each type of atom or ion in a molecule.222views
Open QuestionWhat is the empirical formula of a compound that contains 29% Na, 41% S, and 30% O by mass?286views
Open QuestionWhat is the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen?253views
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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