How many moles of Cu are there in 109 grams of Cu?

Q: How many moles of KBr are in 64.9 grams of KBr?

A:

Q: How many moles of CF4 are there in 179.7 g of CF4?

A: Molecular weight  of CF4 =1×molecular weight of Carbon+4×molecular weight of…

Q: How many grams of O are in 825 g of Na, O?

A: Given: Mass of Na2O =825 g  The molar mass of Na2O =61.97894 g/mol Moles=(825 g )/(61.97894…

Q: What is the mass, in grams, of 1 mole of oxygen atoms?

A: Given :- number of moles of O = 1 mol  To calculate :- mass of 1 mol O atoms 1 mol contains 6.022 ×…

Q: How many atoms are in 145 g of calcium?

A: Given: Mass of Calcium = 145 g To Calculate: Number of atoms in 145g of Ca

Q: how many Sn atoms are in a 48.7 g sample of Sn?

A:

Q: How many grams of gold are there in 0.449 moles of gold?

A:

Q: What is the mass of calcium in grams in 9.07 g of calcium hypochlorite?

A: 9.07 g of Calcium hypochlorite is taken.

Q: How many moles of Cu are there in 36.2 grams of Cu ? moles

A: Given : Mass of copper = 36.2g

Q: How many atoms are in 2.50 moles of Cl?

A: 1 mol = 6.022 × 1023 atoms

Q: How many moles of gold are there in 1.20 ounces of gold?

A: Moles of any substance can be defined as the ratio of mass of substance and the molar mass of…

Q: How many moles are in 15 g Li?

A: Recall the following expression of moles           moles=given mass of a compoundin gmolar mass of…

Q: How many moles of CF4 are there in 171g of CF4

A: No. Of moles = given mass / molar mass  Given mass is 171g  Molar mass is calculated in 2 step.

Q: How many grams are there in 2.10 moles of sodium (atomic mass = 23g/mol)?

A: We know that,  Number of moles = mass / molar mass

Q: How many grams of carbon are in 69.36 g of octane?

A: Molar mass of Octane(C8H18) is 114.23 g/mol One molecule of Octane contains 8 atoms of Carbon Molar…

Q: How many atoms are in 175 g of calcium?

A: Given, Mass of calcium = 175g. Moles of calcium present in 175g can be calculated as

Q: How many moles of KBr are in 67.2 grams of KBr?

A: Mole = Given mass ÷ Molar mass  Given mass of KBr = 67.2 grams  Molar mass of KBr = 119.002 g/mol

Q: How many moles of Cu are there in 83.6 grams of Cu?

A: The number of moles is a chemical unit which is mathematically expressed as: N=MMM…

Q: If you found that you need 0.2943 moles of copper, how many grams of copper do you need?

A: The mole of copper is = 0.2943 moles The mass of copper in grams is =?

Q: How many molecules of carbon tetrafluoride, CF4, are in 176 grams of CF4?

A: We know 1 mol of any compound contains Avogadro's number of molecules. That is 6.022× 1023…

Q: How many grams are in 9.3 x 1020 atoms of Lead?

A: Applying concept of mole and avogadro concept.

Q: How many grams of Cl are in 105 g CaCl2?

A:

Q: if there are 23 moles of water in a barrel,How many Grams are there?

A: Given: Number of moles of water= 23 moles  find mass of water = ?

Q: How many grams of S are in 775g of SO2?

A: The mass of SO2 is = 775 g The mass of S in this amount of SO2 is =?

Q: How many atoms are in 55 grams of Aluminum (Al)?

A: Given , Mass of Al= 55 g Molar mass of Al= 26.982 g/mol Avogadro's number= 6.022×10^23

Q: How many grams of gold (Au) are there in 93.55 moles of Au

A:

Q: How many atoms arc in 157 grams of H?

A: Number of mole (n) of substance is calculated by dividing mass of substance (m) to molar mass (M) of…

Q: How many moles in 1 gram of gold

A: Here, we have to find the number of moles present in 1 gram of gold.

Q: How many chlorine molecules are contained in a 151.34 g sample of chlorine?

A: To know the number of molecules, first we have to know the number of moles. Moles = Given mass /…

Q: to

A: Mass of Material Can be calculated by multiplying with one atom weight with a number of atoms.

Q: How many moles of iron (Fe) are in 279 g of iron?

A: Introduction: The amount of material that contains 6.023×1023  atoms, molecules, ions, electrons in…

Q: How many fluorine atoms are in 44 g of fluorine?

A: It is given that:Mass of fluorine = 44 g

Q: 1. How many moles of Au are in 212 g of Au?

A: 1 mole = atomic mass grams. Here atomic mass of Au = 199.96. 199.96 grams of Au = 1 mole 212 grams…

Q: What is the mass of 0.6134 moles of gold atoms?

A: Given, moles of gold atoms = 0.6134 moles molar mass of gold = 196.97 g/mol  To oetermine mass of…

Q: How many moles are there in 189 grams of silver?

A: Given, 1. Mass of silver (Ag) = 189 g     Molar mass of silver = 107.9 g/mol 2. 1 mol of sodium.

Q: how many atoms of Na are in 48g of Na?

A: Molar mass of a compound ican be defined as the mass of compound divided by the amount of that…

Q: How many grams are in 2.67 moles of NaNO3?

A: To solve this problem we will use the molar mass of NaNO3  We will use the formula  Mass = number of…

Q: how many atoms are in 102.1 g of sodium?

A:

Q: How many grams of F are in 245 g CaF2?

A: Given: 245 g CaF2

Q: How many molecules of carbon monoxide,CO, Comprise 4.82 grams?

A: First convert the given grams of CO to moles. Moles=MassMolar mass=4.82g28.01 g/mol=0.172 mol

Q: What is the mass of 0.049 mole of potassium sulfate?

A:

Q: How many moles of N are in 0.237 g of N,O?

A:

Q: How many moles of gold (Au) are in 2.1 × 10−10 g of gold?

A: Formula for calculation of no.of moles: no.of moles =(given weight of the atom / Atomic weight of…

Q: How many atoms are in 1.33 moles of NO?

A: 1 mole consist of Avogadro number of atoms. Avogadro number = 6.02214076 × 1023

Q: How many moles of KBr are in 52.3 grams of KBr?

A:

Q: How many grams of copper are in 2.00 moles?

A: As we know 1 mole of copper contains 63.54 gram. In this question given 2 moles of copper

Q: How many moles of Mn are there in 85.8 grams of Mn?

A: Number of Moles of Mn can be calculated as follows -

Q: How many grams of Cl are in 435 g CaCl2?

A: Given, Mass of calcium chloride = 435g

Q: How many atoms are in 127 g of calcium?

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

Q: 77 g of phosphorus is how many moles?

A: Moles of a substance can be defined as the ratio of mass is to molar mass. Given data, Mass of P =…

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.