An oxide of tungsten (symbol W) is a bright yellow solid. If 5.34 g of the compound contains 4.23g of tungsten, what is its empirical formula?

Q: The empirical formula of a compound is NO2, and its molar mass is about 92.g. What is its molecular…

A: We know the relation between empirical formula and molecular formula is,Molecular mass = n…

Q: Caffeine, a stimulant of the central nervous system, has the molecular formula C8H₁0N4O2. The molar…

A: Mass of 1 mole = molar mass 1 mole AB contain 1 mole A and 1 mole B

Q: Consider the following four formulas: SO2, B2H6, CO, C4H2O2. Which of these formulas could be (a)…

A:

Q: Ascorbic acid is one form of vitamin C and is known to contain only carbon, hydrogen, and oxygen.…

A: Given,  The mass percent of Carbon = 40.91%  Hydrogen = 4.578% and Oxygen = 54.50% The mass of the…

Q: A combustion analysis of a 0.4647-g sample of a compound known to contain only carbon, hydrogen, and…

A:

Q: Consider the reaction: CH4(g) + CCl4(g) → 2CH2Cl2(g) Given an initial mass of 18.25 g CH4, an…

A: Given that - balanced Chemical equation -  CH4(g) + CCl4(g) ---------> 2CH2Cl2(g)    Molar masses…

Q: White phosphorus, P4, spontaneously bursts into flame in oxygen. If 6.500 g of white phosphorus…

A: Answer: Empirical formula of the compound is the formula that represents the atoms of each type…

Q: A 0.812 g sample of a compound containing carbon, hydrogen and oxygen was burned in air to produce…

A:

Q: Direct reaction of iodine (I2) and chlorine (Cl2) produces an iodine chloride, IxCly, a bright…

A: Empirical formula represents the smallest whole number ratio.

Q: A molecule has an empirical formula of Ch2. 1.34 moles of the compound give 530.76 g of CO2 upon…

A: Given : We have to calculate the molecular formula.

Q: Adipic acid is an organic compound composed of 49.31% C, 43.79% O, and the rest hydrogen. If the…

A: To determine the empirical formula and molecular formulas of a compound, we need to follow certain…

Q: Cobalt(II) chloride forms several hydrates with the general formula CoCl2·xH2O, where x is an…

A:

Q: A compound contains 1.65 x 10 23 atoms of carbon, 0.552 g of hydrogen and 4.39 g of oxygen, what is…

A: Given: 1.65*1023 atoms of carbon 0.552 g of hydrogen 4.39 g of oxygen

Q: A compound containing hydrogen, H; boron, B; and oxygen, O, is analyzed and found to be 3.90%…

A: The empirical formula of a chemical compound is the simplest whole-number ratio of the atoms in the…

Q: An oxide chromium is made up of 5.20 g chromium and 5.60 g oxygen. What is the empirical formula of…

A: Empirical formula of a compound is determined to dente the simplest ratio of atoms present in that…

Q: Chlorophyll, the substance responsible for the green color of leaves, has one magnesium atom per…

A:

Q: An unknown hydrocarbon contains carbon, hydrogen, and oxygen. Combustion of 1.5000g of the…

A:

Q: Hydrated vanadium (II) sulfate, VSO4·xH2O, is 46.19% water by mass. Determine the empirical formula…

A: Given data contains, Atomic mass of Vanadium is 50.94 amu. Atomic mass of sulfur is 32 amu. Atomic…

Q: A student determined the mass of NaCl extracted during an experiment to be 0.42 grams. If the mass…

A: Given  Mass of NaCl = 0.42 g Mass of original mixture = 1.97 g

Q: A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields…

A:

Q: What number of Fe atoms and what amount (moles) of Fe atoms are in 500.0 g of iron?

A: Number of moles of iron in the given mass of iron is calculated as:

Q: An organic compound contains only carbon, hydrogen, nitrogen, and oxygen. It is 61.71% C, 4.03% H,…

A:

Q: The characteristic odor of decaying flesh is due to the presence of various nitrogen-containing…

A: The molar mass of any substance is the mass present in one mole of the substance and the molecular…

Q: An impure sample of table salt (NaCl) that was dissolved in water and treated with silver nitrate to…

A: Mass of the impure sample = 1.741 g  Mass of AgCl formed = 4.084 g

Q: Quinine is used to treat malaria and has a molar mass of 325g/mol. If the empirical formula is…

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Q: Thiophene is a liquid compound of the elements C, H, and S. A sample of thiophene weighing 7.96 mg…

A: An empirical formula is depicted by the simplest whole number ratio of the various atoms present in…

Q: In an experiment, 3.250 g of NH3 reacted with 3.50 g of O₂. Supposed that the reaction produced 2.13…

A: We have given that  In an experiment 3.250 g of NH3 reacted with 3.50 g of O2 Supposed that the…

Q: When ammonia is mixed with hydrogen chloride (HCl), the white solid ammonium chloride (NH4Cl) is…

A: Given: The mass of ammonia is 10 g. The balanced chemical reaction is, Find the limiting reagent of…

Q: When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment,…

A: Given,  When copper is heated with an excess of sulfur, copper(I) sulfide is formed  Also, Mass of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.