What is the mass of PbCl2 (Lead Chloride)?

Q: A salt crystal has a mass of 0.20 mg, How many NaCl formula units does it contain?

A: Given:Mass of NaCl = 0.20 mg = 2.0x10-4 g.Molar mass of NaCl = 58.44 g/mol.

Q: What is the molecular mass of iron (III) oxide (Fe2O3)? Enter your answer rounded to four sig figs,…

A:

Q: What is the number of formula units of 5.36 grams of ammonium sulfate?

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

Q: What is the mass of a boron trichloride molecule ? | grams

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Q: How many formula units are there in 35.5 g of calcium chloride?

A: This question can be solved by the following equation: Number of formula units = (Weight/Molar mass)…

Q: Seven moles of sulfur dioxide, SO2, would consist of how many molecules?

A: Since,   1 mole = 6.023×1023 molecules

Q: Question attached

A: Interpretation - To write the balanced chemical reaction.

Q: 80 grams of sodium hydroxide contains how many molecules?

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Q: formula mass MgBr2.

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Q: What is the mass of 5.50 moles of rhenium

A: The mass of  one mole of rhenium is 186.2 g/mol

Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

A:

Q: An experiment requires that enough XeOF4 be used to yield 19.2 g of fluorine. How much XeOF4 must…

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Q: what is the mass in 1.27 mol NaCl?

A: The number of moles of NaCl is = 1.27 moles The mass of these moles is =?

Q: What is the formula mass of H2SO4?

A: The formula mass of H2SO4 is to be calculated.

Q: Four moles of sulfur dioxide, SO2, would consist of how many molecules?

A: The number of molecules of a substance present in one mole is known as its Avogadro number, its…

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 of neon, Ne, would contain the same number of atoms as 58.69358.693 g of nickel, Ni

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Q: A chemical reaction was used to produce 1.61 moles of copper (II) bicarbonate, Cu(HCO3)2. What mass…

A: Given data:

Q: What is the percent mass of carbon in H2C2O4?

A: Hydrocarbons are compounds made up of carbon and hydrogens. An organic acid is an organic compound…

Q: what is the formula mass of calcium nirate? ( round to a whole number)

A: To Write the formula of a chemical compound. first write the Symbol of cation and then write the…

Q: What is the mass of 0.35 moles of sulfuric acid?

A: To calculate the mass of 0.35 moles of sulfuric acid.

Q: How many moles are in 5.53 g C203?

A: Given :- mass of C2O3 = 5.53 g  To calculate :- number of moles of C2O3

Q: For the compound Glucose ( C6H12O6 ), What is the percent Oxygen in glucose?

A: We need to find the amount of oxygen present in glucose. We will calculate the given problem by…

Q: 3 molecule(s) of dinitrogen pentoxide contains: How many oxygen atoms? How many total atoms?

A: The molecular formula of dinitrogen pentoxide is N2O5

Q: How many grams are in 5.11 × 10¹⁵ molecules of CO?

A: Given :- number of molecules of CO = 5.11 × 1015  To calculate :- mass of CO (in g)

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

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Q: How many molecules of CH4 are there in a 218.4 gram sample of CH4 ?

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Q: What is the mass percent oxygen in the molecule NO2?

A: We Know that, Molar mass of NO2 = 46.0 g/mol Molar mass of O2 = 32.0 g/mol

Q: What is the mass of 0.710 mol Na

A: Number of moles of Na are 0.710 mol. Molar mass of Na is 23 g/mol.

Q: What mass of CCl4 contains 7.0x1026 molecules of CCl4

A:

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: What is the mass of 0.900 mol of BCl3?

A:

Q: 1. What is the mass of 4.16 mol of Cu?

A: Mass of Cu = ?  Moles of Cu = 4.16 moles

Q: How many molecules of NaCl  are in 2.9 grams of NaCl?

A: From molar concept, it is clear that,1 mole of any substance contains Avogadro number of particles.…

Q: • Part A How many titanium atoms are in a pure titanium bicycle frame with a mass of 1.12 kg ? ? Ti…

A: 1mole=6.023×1023molecules/atoms/ions.1mole = molar mas of any substance.atomic masy of Titanium…

Q: What is the mass of a boron trichloride molecule ? grams

A: A molecular mass of a compound is defined as the sum of mass of all the atoms present in the…

Q: How many CHCl3 molecules are there in 24.5 gg of CHCl3.

A: The molar mass of CHCl3 is 119.5 g/mol. That is 1 mole has 119.5 g. We know that one mole has…

Q: What is the mass (grams) of 2500. carbon atoms?

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Q: How many total atoms are in a sample of 10.0 grams of disilicon tetrachloride?

A:

Q: Five moles of sulfur dioxide, SO2, would consist of how many molecules?

A: Given, 5 moles of SO2 1 mol of a compound contains  number of molecules.

Q: Nine moles of sulfur dioxide, SO2, would consist of how many molecules?

A: Number of moles of SO2 = 9 Number of molecules of SO2 = ?

Q: What is the empirical formula of bismuth chloride?

A: Given , Bismuth mass = 0.687 g mass of bismuth chloride 1.032 g

Q: Seven moles of sulfur dioxide, SO2, would consist of how many molecules?

A:

Q: What is the molar mass of ammonium phosphate, whose chemical formula is (NH4)3PO4?

A: Molar mass of any compound = atomic mass of all the atoms present in the chemical formula  Since in…

Q: b) What is the molecular formula given that its mass is 121 g. ( to

A: Given;

Q: How is the molecular mass of a compound the same as themolar mass, and how is it different?

A: The molecular mass indicates the mass of one molecule and it is obtained by adding the masses in amu…

Q: How many grams of C are present in 2.14 grams of carbon tetrabromide ?

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

Q: B. How many number Na* ions in 3 g of Na3PO4?

A: Given, The mass of Na3PO4 = 3g Note: one mole (molar mass ) of any substance contains Avogadro…

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.