The molar mass of CCl4 is 153.81 g/mol. How many grams of CCl4 are needed to have 7.3 mol?

Q: there is 2.60 g of Fe and 4.15 g of O2 reacting to make Fe3O4. How much of the excess reactant (in…

A: Given that -  Mass of iron , Fe = 2.60 g  Mass of Oxygen, O2 = 4.15 g  The Balanced Chemical…

Q: What is the mass of 2.84 mol H2O? 3.05 g 51.2 g 28.4 g 3.48 g

A: We have to predict the mass of water.

Q: Determine the molar mass of the hydrate CaCl2⋅2H2O.CaCl2⋅2H2O. molar mass:   g/mol

A:

Q: How many sodium ions are contained in 13.8g of Na2SO3? The molar mass of Na2SO3 is 126.05g/mol.

A: Number of moles of Na2SO3 is determined as follows,

Q: If 1.00mol/l of nax contains 4.2% solute by mass, what is the atomic mass of x?

A: Given solution contains 1.00 mol of NaX in 1 L. Again (w/v)% of NaX is 4.2%. Here we have to…

Q: How many moles of NaOH are present in 21.6 mL of 1.00 M NaOH

A:

Q: Complete combustion of 7.30 g of a hydrocarbon produced 22.4 g of CO2 and 10.7 g of H2O.   What is…

A:

Q: How many moles of Ag are in 87.4 grams of Ag₂O?

A: molar masss of Ag2O = 231.7 g/mol Number of moles = 87.4 g / 231.7 g/mol = 0.372 Moles

Q: A compound containing only carbon, hydrogen, & oxygen is analyzed using combustion analysis. When…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: How many number of moles are present in 100 g of CaCO3?

A: The number of moles of a compound can be calculated by the ratio between mass of the compound to its…

Q: An unknown organic compound contains 41.4 % carbon, 3.47 % hydrogen, and 55.1 % oxygen by mass. A…

A: Given data,Percentage of C=41.4%Percentage of H=3.47%Percentage of O=55.1%Moles of compound…

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…

A:

Q: Refer to the picture below. If 15.0 g of Mg and 150.0 g of AgNo₃ are allowed to react, find the 1.…

A:

Q: The molar mass of carbon dioxide (CO2) is 44 g/mol. What is the mass of 6 moles of carbon dioxide?

A: Molar mass of a substance can be defined as the mass of 1 mole of the substance. It is expressed as…

Q: Liquid nitromethane was once widely used as an explosive but is now much more common as a fuel for…

A:

Q: 1. How many moles of NaOH (FW = 40g/mol) are there in 2.0 grams NaOH? 2. How many grams of Na2CO3…

A: moles of NaOH = mass / FW = 2.0 g / 40 g/mol = 0.05 moles NaOH

Q: Complete the table below for calculating the molar mass of the compound phosphorus triiodide. Molar…

A:

Q: How many atoms of oxygen are present in 12.6 g of hydrated oxalic acid, (COOH)2.2H2O? Avogadro's…

A: First calculate molar mass of hydrated oxalic acid (COOH)2.2H2O. Molar mass of C is 12g, O is 16 g,…

Q: How many molecules are present in 1.36 g of AgNO3?

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Q: How many moles of NaOH do I have, if I have 16.05 mL of NaOH?

A:

Q: What is the mass percent of ethanol (CH3CH₂OH) if 0.0750 moles of ethanol is added to 0.350 kg of…

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Q: How many grams of ammonia, NH3, could be made from 6.0 mol of H2 and 2.0 mol of N2?

A: The amount of NH3 produced has to be calculated.

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.