Consider a sample of calcium carbonate in the form of a cubemeasuring 2.005 in. on each edge. If the sample has a densityof 2.71 g/cm3, how many oxygen atoms does it contain?

Q: C. What is the mass (in grams) of 5.03 × 1022 molecules of CO2 molecules?

A: Number of molecules of any species is given by, => Number of molecules = moles X Avogadro's…

Q: . How many oxygen atoms are in 76.3 g N2O4? Conversion must be set-up in one step using dimensional…

A:

Q: A particular brand of beef jerky contains 0.0552% sodium nitrite by mass and is sold in an 8.00-oz…

A: The concentration of any solution can be shown by either expressing its molarity, molality,…

Q: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

A:

Q: Another student performed the same percent composition of a hydrate experiment, but kens the…

A: 3a. The experiment was the determination of percent composition of hydrate.

Q: What is the mass percentage of carbon in C6H12O3? Express your answer as a percentage (i.e., out of…

A:

Q: What is the mass of H2SO4 in a 48.1 cm3 sample of concentrated sulfuric acid that has a density of…

A: The given question is related to analytical chemistry. The mass of any compound is equal to…

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: The chemical formula of trinitrotoluene (TNT) is C7H5N3O6. What is the molecular mass of TNT?…

A: We have to find the molecular mass of trinitrotoluene (TNT) is C7H5N3O6. Atomic mass of Carbon =…

Q: A sample of nickel silver contains 18.0% nickel by mass. What mass of nickel silver must be melted…

A: Given: Sample of Nickel Silver contains: 18% Nickel by mass.

Q: 3. Lithium has two stable isotopes with masses of 6.01512 u and 7.01600 u. The average molar mass of…

A: Answer is explained below.

Q: A beaker contains 48.948.9 mL of carbon tetrachloride (CCl4CCl4, density is 1.591.59 g/mL).…

A: Volume of carbon tetrachloride = 48.9 mL  Density = 1.59 g/mL  Density = mass ÷ volume

Q: You wish to prepare 205 grams of 14.3 % MgSsO4- You will need grams of magnesium sulfate and mL of…

A: Given that, % of MgSO4 = 14.3%  ,  Total mass = 205 gms Also, % of MgSO4 = Mass of MgSO4Total…

Q: Quartz, SiO2, contains 46.7% silicon. What mass of silicon is present in 370 g of quartz?

A: To solve this problem we have to calculate the mass of silicon present in quartz .

Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: the number of molecules of niacin

A: The given mass and molar mass of niacin is 16 mg and 123.11 g/mol. The number of moles of niacin =…

Q: Part B 118 mg C6 H12O6 in 5.01 g H20 Express your answer as a percentage. ? mass % = % Submit…

A: Mass% = (mass of solute/mass of Solution) x 100

Q: 6. A student reported the following percentages for his unknown mixture: 25% NH4CI, 30% NaCI, and…

A:

Q: 5. A bottle of Ibuprofen (C,,H,,O,) contains 1.204 x 1024 molecules. How many grams of ibuprofen are…

A: The molecular weight is 206.29 g/mol means 1 mol of ibuprofen = 206.29 g of ibuprofen

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: You wish to prepare 211 grams of 16.6 % Mg(CH3COO),. . You will need grams of magnesium acetate and…

A:

Q: present

A: Dear student I have given answer to your question in the image format.

Q: 1.Glucose is an important biological molecule with the molecular formula C₆H₁₂O₆. What is its…

A: 1.Glucose is an important biological molecule with the molecular formula is C₆H₁₂O₆. An empirical…

Q: certain alloy with a density of 11.5 g/cm3 contains 55% iron by mass. a) How many pg of iron would…

A: Density is defined as the mass per unit volume. It is represented by rho . Its relation is as…

Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A:

Q: Lead is found in Earth’s crust as several different lead ores. Suppose a certain rock is 38.0% PbS…

A:

Q: A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO,…

A: Given: Percent by mass of CO32- ions in sample = 69.14 %

Q: I. Name the two organic compounds. Br OH B. SH O =¢ si Br C =0 Catla

A:

Q: 4. ocean water contains 3.4% sodium chloride by mass. How much salt can be obtained from 346.8 g of…

A: Given: Percentage of NaCl= 3.4% Mass of sea water= 346.8g To find: The mass of salt

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: A. What is the density of an unknown liquid if 15.00 mL of the unknown has a mass of 12.257 g? B.…

A:

Q: A bottle of a tile cleanser contains 135g og HCl and 775g of water. What is the percent by mass og…

A:

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

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.