any grams of chromium metal are

Q: Suppose theoretical yield of aspirin is 2.742 g, and the actual experimental yield is 2.180 g. What…

A: Theoretical yield is maximum amount of product that can formed from given amount of reactants. This…

Q: Determine the mass of 0.50moles of lead

A: Given: Moles of Lead (Pb) = 0.50 mol. Molar mass of Lead = 207.2 g/mol

Q: what is a definition of a mole

A: A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance.…

Q: Calculate the mass in grams of a single water molecule

A: Water has the molecular formula of H2O. Molecular mass of water is the sum of atomic masses of…

Q: If 1.00 g of gray zinc powder reacts with 0.49 g of yellow sulfur powder, what is the mass of the…

A: Given : Mass of gray zinc powder = 1.00 g Mass of  yellow sulfur powder = 0.49 g Mass of ZnS = ?

Q: In today's laboratory you are going to mix elemental copper and elemental sulfur to form a…

A: molar mass of Copper = 63.55 g/mol The relation between the mass of a substance and the number of…

Q: Calculate the mass percent of chlorine in CCl6

A: Mass percent is a percentage of amount of an atom in the given molecule.  The mass percent of…

Q: The mass of 12.5 mol of sodium chloride is? (in kg)

A: Mass of 1 mole of a substance is called as molar mass.

Q: The mass of silver in a 9.000 g of silver chloride,AgCl is ?

A:

Q: A sample contains 11.8295 g  calcium and 41.1705 g bromine.  What is the percent calcium is in this…

A: Mass percent or weight percent of a substance is the mass of the element by the mass of the…

Q: If there are 3, 000 molecules of sugar, how many grams are there?

A:

Q: was the mass of O2 0.1691mole

A: In this question, we have to clear the doubt regarding the preceding question.

Q: What is the average mass of the tin in the sample?

A: It is a given a mass spectrum of tin which has 3 peaks at 116 with 27% abundance and 118 with 58%…

Q: When ammonia is prepared from nitrogen gas and hydrogen gas, 22 grams of ammonia are actually…

A: This question is asking about the formula based problem of percent yield. If we recall the formula,…

Q: If 175 g of molten iron(III) oxide reacte with 30.0 g of aluminum, what is the mass of the iron…

A:

Q: If 15.3 grams of chloriine react with 8.6 grams of calcium to form calcium chloride, what is the…

A:

Q: How many grams of zinc will contain the same number of atoms as 24.6 g of copper? Express your…

A: Given weight = 24.6 g of copper

Q: A substance has a molecular mass of 143151 u. Find the mass of one molecule of this substance.

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

Q: According to the law of conservation of mass, the total of the masses of the reactantsImmersive…

A: The chemical reaction follows the law of conservation of mass. According to the law of conservation…

Q: how many chlorine atoms in a 100 g sample of gold(iii) chloride?

A:

Q: Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up…

A: Given: % of gold in Sylvanite = 28.0 % Mass of gold = 87.0 g

Q: A compound has the chemical formula SrX2, where X is an unknown nonmetal. The percent by mass of Sr…

A:

Q: t is asking for mass. The answer should be in g.

A: It is based on the concept of stoichiometry Here we are required to find the mass of potassium…

Q: What is the mass for 1.5 billion molecules of nitrogen in amu and grams

A: A numerical problem based on the relationship between number of molecules and the respective mass.

Q: How many grams of chlorine atoms are present in a 7.73 g sample of barium chloride (BaCl2)? Enter…

A:

Q: atoms

A:

Q: You have measured the mass of samples A,B,C,D, and E on the analytical balances in our chemistry…

A: ∵ Standard deviation S=ΣXi-X2n-1Where ,         X=sample average         Xi=Individual values in…

Q: One molecule of H2SO4 would have a mass in grams equal to?

A: Given, one molecule of H2SO4we are asked to calculate the mass of one molecule of H2SO4 in grams.

Q: The mass of 6.50 mol of potassium sulfate is

A: mass of potassium sulfate(K2SO4)=?molar mass of potassium sulfate(K2SO4)=174.3g/molmoles of…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Calculate the number of g of O,

A: Given :- moles of C3H8 = 3.77 mol  To calculate :- mass of O2 (in g)

Q: A 0.4505 g sample of aluminum reacts according to our experiment to produce alum. 5.7955 g of dried…

A: Given : Mass of Al reacting = 0.4505 g And mass of Alum produced = 5.7955 g Molecular formula of…

Q: An unknown compound has the following chemical formula: NO, where x stands for a whole number.…

A: Given :-  chemical formula of unknown compound = NOx  no.of moles of O = 5.1 mol  no.of moles of N =…

Q: How many grams of S are in 515 g of SO2?

A: The atomic mass which is denoted in grams indicates the gram atomic mass. The relationship between…

Q: The formula for alum has 1 Al. How many units alum could be made from 7 Al atoms? Answer with a…

A: The molecular formula of alum is K2(SO4)·Al2(SO4)3·24H2O or KAl(SO4)2·12H2O

Q: The percent mass of aluminum in Al(CH3COO)3 is.... %?  solve.

A: I have given the answer in the explanation section. Hope you will understand that.

Q: Calculate the mass of carbon (in grams) in 366 g of acetic acid.

A: Given :-  Mass of acetic acid = 366 g  To calculate :-  Mass of carbon (in grams)

Q: What is the mass of 500 gold atoms in grams?

A:

Q: A sample of a compound has a percent composition of 71.47% calcium and the rest oxygen.  if the…

A:

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.