Calculate the average mass of 500. atoms of iron (Fe).

Q: A phosphorus and oxygen containing compound is 46.2494% phosphorus and 53.751% oxygen. Determine the…

A: Note: According to the rules we can answer one question at a time. Pls repost others  Given:…

Q: 1. Silver chloride, used in silver plating, contains 75.27% Ag. Calculate the mass of silver…

A: Note: According to the rules we can solve only first part. Pls repost other. Given: Percentage of…

Q: Percentage Composition: Aluminum Phosphate

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Q: 4. Find the mass of 3.66 mol of N2, nitrogen gas.

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

Q: 1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant…

A: The molar mass of a compound is described by the moles concept. According to this concept, one molec…

Q: Calculate the molar mass. a. Co(NO3)2 x 6H2O b. Ni(NO3)2 x 6H2O

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Q: Complete the Avogadro's Statement for the element hydrogen: 1 mole of hydrogen hydrogen atoms =…

A: A mole is defined as that amount of the substance which has mass equal to gram atomic mass if the…

Q: There are ______ x 1023 molecules of CO2 in 50.0 g of CO2.

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Q: . A 67.0 g sample of a compound was found to contain 40.2 g of carbon, 3.00 g of hydrogen and 23.8 g…

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Q: A compound has a molar mass belween 165 - 170g. the percentage composition by mass values are…

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Q: Water has a molar mass of 18.0 grams H2O per mole of H2O. How many moles of H2O are in 9.00…

A: Note: 1000 mg = 1 gmass of H2O = 9.00 milligrams = 0.009 gramsmolar mass of H2O = 18.0…

Q: Determine the mass in grams of Li+ (6.941 g/mol) in 25.0 g of Li2SO4 (109.94 g/mol).

A: Given: Mass of Li2SO4 = 25.0 g.

Q: Calculate the molar masses of the following molecules. Include the units. Use 4 significant figures.…

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Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Which statement best describes molar mass? a. the mass of 6.02 x 10²3 atoms, which is constant for…

A: The molar mass of a compound is described by the moles concept. According to this concept, one mole…

Q: How many ATOMS of phosphorus are present in 3.91 moles of phosphorus trichloride? ________ atoms of…

A: A mole is the amount (10) of material containing 6.02214 × 1023 particles. 1 mol = 6.02214 × 1023…

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

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Q: There are ______ x 1023 molecules of CO2 in 50.0 g of CO2.

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Q: Convert 0.834 mol of le ad(M) nitrate, Pb(NO3)4(s), into mass.

A: Given :-  Number of moles of Pb(NO3)4 = 0.834 mol  To convert :-  0.834 mol to grams

Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: Selenium dichloride, SeCl2, has a molar mass of 149.86 g/mol.  What is the mass in grams of 0.325…

A: Given, moles of SeCl2 = 0.325 moles molar mass of SeCl2 = 149.86 g/mol mass of SeCl2 = ?

Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

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Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Avogadro’s number is defined as   the number of atoms in exactly 12 g of carbon-12. the number of…

A: Which one of the following is correct

Q: iron (II) phosphate Ca3(PO)2->Fe,N +COCNJ2+FePo4 1. How many grams of calcium phosphate must be used…

A: The stepwise solution is as follows -

Q: Without using a calculator, which has the greater mass: One mole of carbon atoms or one mole of…

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Q: Determine the mass in grams of 2.67 x 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

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

Q: a. A 9.475 gram sample of copper is heated in the presence of excess chlorine. A metal chloride is…

A: Given question related to calculating empirical formula of metal halide formed when metal is heated…

Q: 24. Calculate the following: a. The number of moles of oxygen atoms in 4.35 × 1026 molecules of CO2…

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Q: 19 Convert 7.16E24 atoms of Ni to grams of Fe. 2 Ni+3 Fe(NO3)2 → 2 Ni(NO3)3 +3 Fe type your…

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Q: Cocaine has the structure shown below. It has a molar mass of 303.358 g.mol-1. Determine the number…

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Q: In chemistry, what is meant by the term “mole?” What is the importance of the mole concept

A: Mole is a unit to  express the mass, Number and volume of a Substance in Chemistry.  It is a bigger…

Q: What mass in grams of TNT can be made from 598 g C7H8?

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Q: The formula of glucose is C6 H12 O6. a. The number of molecules in 166 grams of glucose would be…

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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.