What is the mass in grams of a 525cm3 block of lead.

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

A:

Q: What is the mass in grams of 250 liters of oxygen gas,O2?

A: 1 mole of a gas occupies 22.4 L.

Q: How many grams of potassium are in 2.91 g potassium sulfide?

A: Given :- mass of K2S = 2.91 g  To calculate :- mass of K (in g)

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: 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: What is the mass of a 6.110-mil sample of sodium hydroxide?

A: For Sodium hydroxide, Moles (n) =6.110 mol Molar Mass (M) = 40 g mol-1

Q: calculate the mass in grams of 1.9x1024 atoms of lead

A: Mole Moles is a quantity that represents a collection of 6.022×1023 atoms or molecules. The term…

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

A:

Q: What is the mass of 9.19x10^24 molecules of nitrogen dioxide?

A: Given Molecules of nitrogen dioxide (NO2) = 9.19 × 1024 molecules

Q: If a sample of Fe2S3 contains 1.25x10^15 iron atoms what is the mass in grams ?

A:

Q: How many grams of carbon tetrachloride are in 1.01 x 1024 molecules?

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

Q: What is the mass in grams of 13.2 amu?

A: An atomic mass unit is the mass of the carbon atom divided by 12. It is represented as amu. Given -…

Q: What is the mass of oxygen in a 782.9g sample of TiO2?

A: Step : 1          What is the mass of oxygen in a 782.9g sample of TiO2?

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: What mass of CaCl2 will contain 49.5 g of chlorine?

A: One mole of the given compound CaCl2contains two moles of chlorine. In terms of mass, 110.98 g of…

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: What is the molecular mass of CH¿I? amu

A: Molecular mass is defined as the is the mass of a given molecule. The unit of molecular mass is amu…

Q: What is the mass of 1.11 x 1021 formula units of KBr?

A: 1 mole = 6.022x 1023 molecules or atoms  mole (n) = Mass / molar mass   Mass = mole x molar mass

Q: How many grams of Br are in 455 g CaBr2?

A: No. of moles = mass/molar mass  Mass = moles × molar mass

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 atoms would there be in 6.18x106 g of chlorine, Cl2?

A: Given, Mass of chlorine gas (Cl2) = 6.18 × 106 g Number of atoms are there in 6.18 × 106 g of…

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

A:

Q: How many atoms are in 133 g of calcium?

A: Given :- mass of Ca = 133 g  To calculate :- number of atoms of Ca

Q: How many atoms are in 159 g of calcium?

A: Given, 153 g…

Q: How many grams of O are in 805 g of Li2O?

A: The mass of Li2O is = 805 g The mass of oxygen is =?

Q: What mass of AgNO

A:

Q: What is the mass, in grams, of 1.223 mol of iron(III)sulfate?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: 1. The following quantities are placed in a container: 1.5 x 1024 atoms of hydrogen, 1.0 mol of…

A: Given: Number of atoms of H = 1.5 × 1024 atoms. Moles of sulfur, S = 1.0 mol. And mass of diatomic…

Q: What is the mass of strontium in grams in 118 g of strontium iodide?

A: Given in the question, Mass of SrI2 = 118 gm Molar mass of SrI2 = 341.42 g/mol No. of moles of SrI2…

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 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: How many grams of carbon are in 402.1 g of carbon tetrachloride?

A:

Q: What is the mass of magnesium in grams in 2.74g of magnesium hydrogen carbonate?

A: The mass of magnesium hydrogen carbonate is = 2.74 g The mass of magnesium is =?

Q: How many 325 mg tablets of aspirin are required to prepare 30 tablets of 10 grains?

A: Here we need to determine the number of 325 mg tablets required to prepare 30 tablets having 10…

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 grams in 1.70 moles of potassium permanganate?

A:

Q: How many grams of chloride are there in 256 g of magnesium chloride?

A:

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

A:

Q: how many grams are in 4.70 x 10^24 molecules of NaCl?

A:

Q: The percent by mass of copper(II) in Cu3(PO4)2 is %.

A: Introduction- The mass percent of any element is calculated by the ratio of mass of the element in…

Q: How many moles of cesium are in 66.45 g Cs?

A:

Q: If a sample of iron(III) sulfide contains 5.00x10^15 iron atoms, what is the mass of the sample in…

A: Given,  No. of Fe atoms = 5.00×1015 atoms of Fe molar mass of Fe2S3 = 207.9 g mol-1 mass of Fe2S3 =…

Q: How many grams of carbon are in 368.3 g of carbon tetrachloride? mass:

A: Mass of carbon tetrachloride = 368.3 g  Mass of carbon = ?

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

A:

Q: ny grams of ammonia mu

A:

Q: Mass % of I in strontium periodate

A: Mass % of an element in a compound  is the ratio of mass of element to the total mass of the…

Q: The molar mass is the mass of 6.022 x 1023 particles of matter. O True OFalse

A: We know that, Avogadro number =6.022 × 1023 partical/mol so,

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

A: Given, Mass of calcium chloride = 435g

Q: y grams of O,

A:

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…

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.