Dichlorine heptoxide (Cl2O7) is a highly reactive compound used in some organic synthesis reactions. Calculate the percent composition of dichlorine heptoxide.

Q: Methyl tertiary butyl ether, or MTBE, is currently used as an octane booster in gasoline. It has…

A: The question  is based on the concept of mass percentage. mass percentage is defined as the  mass of…

Q: What is the percent composition of nitrogen in C5H4N3?

A: The percent composition of an element is defined as the ratio of the mass of the element and the…

Q: Acetaminophen, a common aspirin substitute,has the formula C 8 H 9 N O 2 . Determine the numberof…

A: Given  Molecular formula of acetaminophen = C8H9NO2  Molar mass of C8H9NO2 = (12 x 8 ) + ( 1 x 9 ) +…

Q: Calculate the molar mass of benzene(C6H6)

A: The molar mass of benzene (C6H6) can be calculated as,

Q: An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, C9H8O4. How many…

A: Given:Mass of aspirin = 325 mg = 0.325 g.

Q: Calculate the following: How many atoms of oxygen are in 1.0 moles of calcium sulfate Ca(SO4) ?

A:

Q: The chemical formula for caffeine is C3H10N4O2. Determine the percent composition of each element in…

A: Percent composition can be find using molar mass.   Molar mass of caffeine is 194 g/mol

Q: An average cup of coffee contains about 125 mg of caffeine, CRH10N4O2. How many moles of caffeine…

A: Moles of the caffiene can be determined by suing the formula given below as: Moles of Caffeine=Given…

Q: • A compound has the following composition: 26.58% K, 35.35% Cr, and 38.07% O. Determine the…

A:

Q: What is the percent mass of iron in the compound Fe3O4

A:

Q: Acetylene is used in oxyacetylene gas welding. Calculate the empirical formula for acetylene given…

A:

Q: Given the chemical equation: B₂H₆ + 6H₂O → 2H₃BO₃ + 6H₂, how grams of water is 30 mole of hydrogen?

A: According to the given chemical reaction, 6 moles of H2 is given by 6 moles of H₂O. 1 mole of H2 is…

Q: How many moles is found in a 94.6 gram sample of sodium acetate, NaC2H302?

A:

Q: The formula for molybdenum(IV) hydroxide is Mo(OH)4. What is the percent by mass of oxygen in…

A: percent by mass of O = (mass of O/mass of Mo(OH)4 ) × 100%

Q: What is the percent composition of caffeine (C8H10N4O2)?

A: Given :- chemical formula of caffeine = C8H10N4O2  To calculate :- percent composition of each…

Q: Make the following conversions: 25 mol Cl2 to atoms chlorine

A: The number of Cl2 molecule in the 25 mol Cl2 is; Number of Cl2 molecules=6.022×1023/mol×25…

Q: Consider the following compound: Sr3(PO4)2 *4H2O   -Calculate the theoretical percent strontium by…

A: The mass percent of strontium in Sr3(PO4)2 * 4H2O is calculated as,

Q: Combustion analysis of fluorene, a polycyclic aromatic hydrocarbon used to make dyes, plastics, and…

A: Given,

Q: Avogadro’s number is 6.022 x 1023 particles per mole.  How many atoms of your element are in 25.0…

A: Given  Avogadro Number = 6.022 × 1023 particle per mole  number of mole     = 25 mole  Number of…

Q: How many moles of ions are created from moles of CaCl2

A: when CaCl2 dissociate it gives one Ca+2 and 2Cl- ions. So that One mole of calcium chloride gives…

Q: Calculate the percent composition of each element in Guanine (C5N5H5O)

A: We have to calculate the percentage of composition of each elements in Guanine (C5H5N5O). Now the…

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many…

A: Explained as follows

Q: In the compound (NH4)S2, what is the percent composition of hydrogen

A:

Q: Convert 1.5 x 1023 molecules SO2 to moles.

A:

Q: Consider a 2.938 mol sample of C4H8. How many atoms of H would be in this sample?

A: 1 mol of sample contains = 6.022 x 1023 particles  = avogadro number of particles (NA)  1 mole of…

Q: What is the percent composition of oxygen by mass to one decimal place in CuSO4 . 5H2O? A. 57.7%…

A:

Q: What is the total number of atoms in 1 mol of Al2(SO4)3?

A:

Q: How many moles are equal to 2.40 x 1023 formula units of sodium chloride? Round to two decimal…

A: Since, Avogadro number (6.022 × 1023) of formula units are equal to 1 mole of any substance…

Q: The anticaking agent added to table salt is calcium metasilicate (CaSiO3). This compound can absorb…

A:

Q: How do you calculate the number of moles of Br atoms in 0.41 mol of CHBr3?

A: The relation of mass and number of moles can be written as: Where, ‘n’ is the number of moles ‘m’…

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Cyanocobalamin is vitamin B12 with molar mass of 1355.38 g/mol

Q: calculate the percent composition of nitrogen in aluminum nitrate  Al(NO3).

A:

Q: 1.What is the percent composition by mass of aspartame (C14H18N2O5), the artificial sweetener…

A: Since you have asked multiple question ,I can solve only the first one as per our guidelines. To get…

Q: What is the percent composition by mass of carbon in the chloroform CHCl 3 ?

A: Given: compound: CHCl3 molar mass of C = 12.01 amu molar mass of CHCl3 = 119.37 amu

Q: Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

A: Calculation of molar mass of the given compound: Molar…

Q: how many moles of hydrogen atoms are in 3.07 x 10^14 molecules of H2O

A: Given: H2O molecules = 3.07 ×1014 molecules.

Q: How many GRAMS of fluorine are present in 5.01×1022 molecules of sulfur tetrafluoride ?

A:

Q: How many molecules are in 2.55 mol S8?

A: The moles of sulphur is 2.55 (given)Mol → Number of molecules

Q: How many molecules of C5H8 would you have if you have 6.19 mol?

A: Given values, Moles of C5H8 = 6.19 mol

Q: Nicotine, C10H14N2, is an alkaloid that is produced by "nightshade" family of plants as an…

A: we know, molar mass of : C = 12.01 g/mol , H = 1.007 g/mol , N = 14.01 g/mol =>molar mass of…

Q: What is the percent composition by mass (to one decimal place) of copper in 80.0 kg of copper (2)…

A: Molar mass of Copper(II) pho sphate = 380.58 g/mol This implies; 380.58 g of Cu3(PO4)2 contains…

Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Percent Composition 1. Calculate % mass of water in: CUSO4•5H20 Mass of Water = Cuso %3D Mass of…

A: Given: A compound CuSO4 x 5H2O Atomic masses of the elements are, H = 1 O = 16 S = 32 Cu = 64

Q: A 69.5 g69.5 g sample of the compound X3O4X3O4 contains 19.2 g19.2 g of oxygen atoms. What is the…

A: First Calculate mas percent of oxygen in compound   Total mass of oxygen in sample is 64g  Then need…

Q: What is the percent composition of iron in the compound Fe2O3?

A: Since we know that precent composition of any element in a compound is calculated as  Percent…

Q: Aspirin is a compound with the molecular formula C9H8O4. What is its percent composition?

A: The percentage composition of C in aspirin can be calculated as: Percent composition of C = Number…

Q: Calculate the molar mass (g/mol) of the compound, C6H8O6 (vitamin C).

A: Molar mass of carbon is 12g/mol  Molar mass of hydrogen = 1g/mol  Molar mass of Oxygen = 16g/mol

Q: how many moles are in 5.46x1019 molecules of C2H3O2?

A: Given: molecules of C2H3O2 = 5.46x1019 molecules

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.