A compound of molar mass 177 g/mol contains only carbon, hydrogen, bromine, and oxygen. Analysis reveals that the compound contains 8 times as much carbon as hydrogen by mass.       Find the molecular formula. Express your answer as a chemical formula.       

Q: A compound composed of lodine, Carbon, Hydrogen, and Oxygen has the following composition by mass:…

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Q: Calculate the number of moles of oxygen in the given compounds: a. 44.5 g Mg(NO3)2 b. 0.640 mol…

A: We have to calculate the moles of oxygen

Q: etermine the number of atoms in 37.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Mass of sodium =37.0g Atomic mass of sodium = 22.99g/mol Moles of sodium = 37.0g/22.99g/mol = 1.61…

Q: Please provide all the work in detail because I will be using this to study

A: Number of moles of Mg and O can be calculated by the equation given below:

Q: Calculate the mass in grams of a sample of NO2 that contains 1.000 x 10^25 molecules.

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Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: By chemical analysis, the composition of potassium phosphate is 55.19% K, 14.63% P, and 30.19% O.…

A: Given data contains, Mass percent of potassium is 55.19%. Mass percent of phosphorus is 14.63%. Mass…

Q: A chemical compound containing hypothetical elements Av, Bw, Cx, Dy, Ez has mass percentages of…

A: Given: Atomic mass of Av = 18.25 g/mol. Atomic mass of Bw = 4.32 g/mol. Atomic mass of Cx = 26.82…

Q: An unknown compound contains nickel, phosphorus, and oxygen. When analyzed, a 100.0 g sample was…

A: Molecular formula is defined as sum of masses of atoms in molecules.

Q: A compound is found to contain 7.962% silicon, 20.10% chlorine, and 71.94% iodine by weight. (To…

A: Here, we have to find the empirical formula and molecular formula of the compound % of Si = 7.962  %…

Q: After heating a 1.095 gram sample of potassium chlorate, KCIO3, the final mass of the residue was…

A: Given, mass of sample of potassium chlorate (KClO3) = 1.095 g The final mass of the residue = 0.682…

Q: Determine the molecular formula if the molar mass of the compound is 957.86 g/mol.

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Q: A chemical compound containing hypothetical elements Av, Bw, Cx, Dy, Ez has mass percentages of…

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Q: Elemental analysis of a compound with molar mass 214.22 g/mol gives the following mass percent…

A: Given data,Percent of C=72.89%Percent of H=4.71%Percent of O=22.41%Molar mass of…

Q: Calculate the mass in grams of 3.19 x 1024 molecules of propylamine. The chemical formula for…

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Q: A chemical compound containing hypothetical elements Av, Bw, Cx, Dy, Ez has mass percentages of…

A: We need to find molecular formula for given compound.

Q: is an impossible formula.  If it were real, determine the molar mass of: Fe2S4O5 Remember that you…

A: Given -> Atomic mass of Fe = 55.85 g/mole Atomic mass of S = 32.06 g/mole  Atomic mass of O =…

Q: The mass of 5.20 moles of glucose, C6H12O6 is   1.56 × 10‑21 g   31.2 g…

A: Given, Moles of glucose (C6H12O6) = 5.20 mol Mass of glucose (C6H12O6) = ? Note; Molar mass of…

Q: 105: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it…

A: 105. Given that,  Volume of 1 drop of water = 0.05 mL Density of water = 1 g/mL Mass of 1 drop of…

Q: The number of ammonia (NH3) molecules present in 4.85 grams of NH3is: a.1.02 x 10^25 c. 1.72 x…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Write the chemical formula, and then calculate the number of molecules in 1.00 g of lithium…

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Q: Using your answers from above calculate the number of grams of these elements. Hydrogen in 124 g of…

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Q: A compound composed of 3.3% H, 19.3% C, and 77.4% O3.3% H, 19.3% C, and 77.4% O has a molar mass of…

A: The considered compound has an approximate molar mass of 60 g/mol.

Q: Calculate the molecular formulas of the compounds having the following empirical formulas and molar…

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Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

A: The mass percentage of a compound in a mixture is equal to the ratio of the mass of that compound…

Q: The elemental analysis results on a compound you just made gave the following mass %: 52.14% C,…

A: Empirical Formula :- The formula which gives the simplest whole number ration of atoms ofvarious…

Q: 1. 2 moles of Ar atoms contain how many atoms?           A.   1        B.   1.204 x 1024…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: The number of grams of 1.38 x 1022 molecules of C12H22011 is: 0.0229 g 7.84 g 342 g 2.29 g

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Calculate the mass in grams of 2.65 x 1023 molecules of sulfur dioxide O 28.2 g sulfur dioxide O…

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Q: Calculating an Empirical Formula from Mass Data Although the mineral ilmenite contains more iron…

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Q: Without using a calculator, arrange these samples in order of increasing numbers of carbon atoms:12…

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Q: Dichlorodifluoromethane (CF2CI2) is an Ozone-depleting substance. It belongs to a class of compounds…

A: Atomic Weight of C = 12.01g/mol Atomic mass of Fluorine = 19.0g/mol Atomic mass of Chlorine =…

Q: The true value of a compound’s molar mass is 176.082 g/mol. You do an experiment and determine the…

A: True value of molar mass = 176.082 g/mol Experimental value of molar mass = 177.85 g/mol. % error =…

Q: What amount of oxygen, O2, (in moles) contains 1.8x1022 molecules? А. 0.0030 В. 0.030 С. 0.30 D. 3.0

A: Given that :- O2 contains 1.8 × 10²² molecules

Q: A compound is 21.20% Nitrogen, 6.06% Hydrogen, 24.30% Sulfur, and 48.45% Oxygen. Write the empirical…

A: Given data,Percentage of N=21.2%Percentage of H=6.06%Percentage of S=24.3%Percentage of O=48.45%

Q: What is the mass in grams of a single formula unit of silver chloride, AgCl? O 1.66 x 10-24 O 4.21 x…

A: Formula unit mass of a substance is the sum of atomic masses of all the atoms present in the…

Q: calculate the mass in grams of each of the following samples. 10,000,000,000 nitrogen molecules(N2)

A: Here we are asked to calculate the mass in grams of 10,000,000,000 =10×109 nitrogen molecules(N2)

Q: Element Molar mass (g/mol) F 19.00 Sr 87.62 Using the information in the table, calculate the number…

A: In this question, we want to determine the number of formula unit of SrF2 Compound.  You can see…

Q: Find the % mass composition of calcium nitrate Ca(NO3)2 and water (H2O)

A: Given that - Compounds - Calcium nitrate Ca(NO3)2 and water H2O    % mass composition is the…

Q: 1. How many atoms of nitrogen are present in 8.98 grams of nitrogen trifluoride?     2. How many…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: B. Molecules 1. C;H10 = 2. Oxygen molecule, 0, = 3. Н,О- 4. IFs= 5. SiO;=

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Q: 4. Cr(NO3)3 is chromic (III) nitride. 5. Ca(NO2)2 is cadmium nitrate.

A: ->Cr(NO3)3  ->Ca(NO2)2

Q: 24 molecules of oxalic acid, H,C,O,, how many grams of the acid should you If you need 3.6 x 10…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: A chemical compound containing hypothetical elements Av, Bw, Cx, Dy, Ez has mass percentages of…

A: We have to determine the Molecular formula of a compound having following hypothetical elements.

Q: empirical formula and formula mass of the compound

A: Empirical formula is the formula which consists atoms of each element in simple whole number ratio.…

Q: Calculate the percent by mass of each element in the following compounds: Calculate the mass percent…

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Q: What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen and 48.68%…

A: Empirical formula is defined as simplest or most reduced whole number ratio of atoms present in a…

Q: For each group of three samples, determine the sample with the largest mass. 13.7 mol of strontium…

A: Given samples: 13.7 mol of strontium iodate, Sr(IO3)2 (s) 15.9 mol of gold (III) chloride, AuCl3…

Q: What is the empirical formula of 49.48% C 28.85%N 16.48%O 5.19%H

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Q: The number of oxygen atoms in 20.18 grams of Al(NO3); is: O 1.712 x 1023 O 0.09474 5.135 x 1023 O…

A: molecular mass of Al(NO3)3 = 213g no of atoms in 1 mole Al( NO3)3 = 6.023X1023 X 6 atoms no of moles…

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.