e quantity of moles of

Q: How many molecules are in 1 mol of water?

A: Given :- number of moles of water = 1 mol  To calculate :- number of molecules of water

Q: Convert grams to moles and vice versa using molar masses?

A: Moles=given mass/ molar mass

Q: The ratio between two substances given by the balanced chemical reaction is called the

A: The quantitative relationship between the maounts of reactants used and amounts of products formed…

Q: A compound contains arsenic and oxygen as the only elements. A sample of the compound contains 75.4%…

A: Given : Sample  have 75.4% arsenic by weight. And the compound is made up of only arsenic and…

Q: Is a a mole of copper microscopic or macroscopic

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Determine the moles in 20.0g of carbon monoxide (CO)

A: Carbon monoxide:

Q: A chemist prepares a solution by dissolving 2.185 g of NaNO3 in enough water to make 200 mL of…

A: Molarity or molar conc.=no. of moles×1000vol. of solution in mlgiven mass=2.185gn=given massmolar…

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: 0.395 mol magnesium nitrate to total number of atoms

A: Magnesium Nitrate  Mg(NO3)2 No of moles = 0.395 No of atoms = ?

Q: 13 Analysis of 1.60 grams of an oxide of iron formed 1.12 grams of iron. a What mass of oxygen was…

A: The objective of the question is to determine-a. The mass of oxygen formed during the analysis.b.…

Q: Find the empirical formula of the unknown chemical using the data

A: Given : The compound contains only carbon, nitrogen and hydrogen. Mass of CO2 produced in the…

Q: The formula for dinitrogen tetrafluoride is . How many molecules are in 8.83 grams of dinitrogen…

A:

Q: what is the average mass of one atom of aluminum?

A: One mole of aluminium contains Avogadro’s number of atom. That is, 6.02*1023 atoms.

Q: A molecule has an empirical formula of NO. If the molar mass of the molecular formula is 117g/mol,…

A: We have to calculate the molecular formula.

Q: What is the average mass of one carbon dioxide molecules in units of amu.

A: The average mass of a compound is the mass of one molecule of that compound. 1CO2 molecule has one…

Q: How many kilograms of magnesium chloride are produced from the reaction 91.3 moles of copper(1)…

A: Quantitative analysis of species in any chemical reaction is formed by its  balanced equation

Q: Why are coefficients used in mole ratios instead ofsubscripts?

A: Mole ratio It is the ratio between the number of moles of any two compounds in a balanced equation…

Q: A helium balloon takes up 4.35 liters of space. Your friend is showing off his new chemistry skills…

A: Dimensional analysis relates between physical quantities with the help of dimensions and units of…

Q: calculate the theoretical percent of potassium chloride in potassium chlorate.

A: Since mass is missing in the term mass percent of potassium chloride in potassium chlorate. Hence I…

Q: How many unit factors are required to solve a mole–mole problem?

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: gaseous methane (ch4) will react with gaseous oxygen(O2) to produce gasesous carbon dixodie (co2)…

A: Mass of methane = 0.481 gm Moles of methane = mass / molar mass                              = 0.481…

Q: 1.00 g of benzoic acid corresponds to how many mmols of this compound?

A: Given that, 1.00 g of benzoic acid. We have to calculate the corresponds amount of benzoic acid in…

Q: convert 248 mg of Pt to mol of Pt.

A:

Q: What is the mole ratio of all the substances represented in this figure?

A: A mole ratio can be described as ​the ratio between the amounts in moles of the any two compounds…

Q: The mass of 0.46 moles of H2O is: Give your answer to the hundredths place in g. Do not put units in…

A:

Q: The chemical formula for diethyl sulfoxide is: (CH,CH,), SO Calculate the molar mass of diethyl…

A:

Q: The molar mass is the mass of a mole of atoms. O True O False

A: Correct Ans is -  The molar mass is the mass of  a moles of atoms ---> This statement is true.…

Q: Percent yield is ( divided by ) times .

A: Percent yield defines the original mass produced.

Q: The number of moles of an element in a compound can be calculated from?

A: The molecular formula of a compound gives the total number of atoms of each element present in each…

Q: 0.676 mol of a particular substance has a mass of 122g. What is the molar mass of the substance?…

A: In order to find the molar mass of the substance we first write down the given data: Number of…

Q: What is the percent by mass of sulfur in PASR? Enter your answer as a number without units. Your…

A: Mass percentage =( mass of sulfur/mass of compoun )× 100 Mass of compound = 380.41 g/mol  Mass of…

Q: How do you determine what n is? I know it is number of moles but how do you find that specifically?

A: Redox reactions are the ones in which both oxidation, as well as reduction, takes place at same…

Q: How many miles of HCI are in a sample of HCI with mass of 126g?

A:

Q: Determine the formula weight of NH,CI. Provide an answer to two decimal places.

A:

Q: What is the molar mass of (NH4)2 SO4 in g/mol? Round and report answer with 2 decimal places.

A:

Q: Calculate the moles of CH3COOH in vinegar (mol). Number answer only, do not write units. Do NOT…

A: vinegar has approx 5 percent acetic acid .

Q: - What is the empiric

A: Assume total mass is 100 g So, mass of C = 48.64 g Mass of H = 8.16 g Mass of O = 100-(48.64+8.16)…

Q: THe answer was incorrect. Is there a way to possibly used the molar mass of both and then convert it…

A: Given , mass of palmitoyl-CoA  = 5.0 kg

Q: Calculate the percentage composition for PNCI2 - (Enter your answer to four significant figures.)…

A: Solution: The percentage composition for PNCl2 are as follows --- The molar mass of phosphorus (P) =…

Q: What is the percent by mass of chlorine in calcium chlorate?

A: The mass percent describes the mass content of particular atom in a complete molecule.

Q: Convert 1.252 moles of sodium chloride into grams.

A: We know, Mass needed = moles × molar mass Now, molar mass of NaCl = 58.45 g/mol Given moles = 1.252…

Q: How many moles of NaOH are in 2.2x1024 formula units of NaOH? Round your answer to 1 decimal place.

A: Amount of substance is one of the seven basic physical quantities. Its unit is mol. For an element,…

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.