A. How many molecules are present in 3.0 g of water? How many atoms of oxygen?  (Avogadro's number: 6.022 x 10^23 of anything*/mol)  Start by calculating moles of water in 3.0 grams... B. How many atoms of hydrogen are present in 3.0 g of water?

Q: many oxygen atoms are in 5.34 x 10 grams LiHSO3? Hint: must use Avogadro's number

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Q: what is a definition of a mole

A: A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance.…

Q: he Mole Reassessment (MC) Identify the correct mathematical calculation to determine the number of…

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Q: How many moles of compound are in the sample?

A: 1 mole of compound is equal to 6.022* 10 raise to power 23 molecules.

Q: How many molecules of C,H, are present in 385.42g of CH,,? 10 10

A: no of moles=mass/molar mass Molecules=moles×6.023x1023

Q: How many grams of ethanol C2H6O are in a 3.0 mole sample?

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Q: If a sample of barium hydroxide has a mass of 5.190 g, determine the number of moles of the compound…

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Q: 1. How many ATOMS of sulfur, are present in 4.82 moles of sulfur dichloride, SCl,? atoms of sulfur

A: Since you have asked multiple question,we will solve the first question for you.If you want any…

Q: My question is how to find the mass of chlorine in agcl after finding the moles of chlorine

A: Given:- How to find the mass of chlorine in agcl after finding the moles of chlorine.

Q: 1. How many moles of Na are there in a sample that contains 6.16×1022 sodium atoms? moles 2. How…

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Q: Determine the mass, in grams, of 0.445 moles of Mn (1 mol of Mn has a mass of 54.94 g). with the…

A: The amount of moles in a substance can be determined by using its Molar mass. The molar mass is the…

Q: How do I create a three step problem going from grams to atoms when dealing with moles?

A: For any element/compound, the weight is related to moles by gram atomic/molecular weight. Also moles…

Q: The weight of grams for 4 moles of Br

A: We know, Number of moles = Mass /Molar MassThus,

Q: Convert 691.3 molecules of methane into moles. Your answer should have 4 sig. figs.   I know the…

A: The number of molecules in one mole of compound is equal to the Avogadro’s number.

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.413 g of C,Hg? x…

A: The molar mass of ethane is,

Q: How many moles of Magnesium are in 0.136 grams MG?

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Q: Six moles of hydrogen sulfide, H2S, would consist of how many molecule

A: Interpretation -  To determine number of molecule of Six moles of hydrogen sulfide H2S -…

Q: 5. How many moles are in 6.24 × 102! molecules of CaSO,?

A: Mole concept : The mole is use to measure the amount of any atom or molecules like other unit. For…

Q: Calculate the number of moles of the given values. 10.0g of silver?

A: The number of moles is calculated by the ratio of the mass(given) by the mass(molar) of the given,…

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: NOTE : The formula given by you in question for nickel tetracarbonyl as NiCO4 is incorrect  The…

Q: How many moles are contained in 251 grams of Fe2O3? First determine the molar mass of Fe2O3. Can…

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Q: A crime scene investigator finds a 3.5 g (C10H14N2) sample of nicotine and sends it to the lab for…

A: Please find the attachment.

Q: Please calculate the mass in grams for:  8.0 mol lead oxide (PbO)

A: Molar mass of Pb = 207.2 g/mol  Molar mass of O = 16g/mol

Q: Aluminum oxide, Al203, is used as a filler for paints and varnishes as well as in the manufacture of…

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Q: 10. Calculate the mass of one mole of glucose (C,H,,O).

A: Given that , Substance = glucose (C6H12O6) moles = 1 mol Now we know molar mass of glucose=…

Q: • Part A How many moles of atoms are in 7.00 g of C? Express your answer numerically in moles. >…

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Q: molecule(s) of propane (C3H8) contains: How many moles? (Enter your answer in scientific notation.…

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Q: In 3.47x1026 molecules of of C3H7NO2 a.How many moles of C3H7NO2 are present b.How many moles of…

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

Q: 3.00x10^31 molecule sample has how many moles?

A: We know that ; 1 mol of sample contains Avogadro's number of Molecules . (Avogadro's number = 6.022…

Q: How many molecules are contained in a glass that holds 250 g of water? How many moles does that…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

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Q: Eight moles of hydrogen sulfide, H2S, would consist of how many molecule

A: Given, Number of moles of H2S = 8 Generally, 1 mol of substance contain 6.023 x 1023 molecules.

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.318 g of C,Hg? x 10…

A: Given Mass of ethane = 0.318 g Standard value Molar mass of ethane = 30 g/mol

Q: A 47.00 g sample containing a mixture of anhydrous CuSO4 and hydrated CusO4:5H20 is heated. The mass…

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Q: e find the Molar Mass, ple

A: the molar mass of the molecules is calculated by adding the mass of all the atoms multiplied by the…

Q: convert 3 moles of H, to molecules of H,

A: 1 mol = 6.02 x 1023 molecules 1 mol = molar mass

Q: A chemist measured out 8.25 g of copper(II) bromide tetrahydrate (CuBr2 · 4 H2O). How many moles of…

A: Since you have asked multiple questions, we will solve only first question for you. If you want any…

Q: Define the term "mole." What is the unit for mole in calculations? What does the mole have in common…

A: Using concept  and explanation of mole . Mole = grame weight/ molecular weight or atomic weight

Q: Glycine is an amino acid with the formula C,H,NO,. Determine the number of moles of carbon in 35.31…

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Q: 2. In a sample of 7.42 x 104 formula units of sodium carbonate, Na2CO3, determine: A) how many atoms…

A: Given: Number of formula units of Na2CO3 = 7.42×1025 units and we know that the molar mass of Na2CO3…

Q: Unknow A sample ( given density= 0.795 grams/mL) Volume:24.6mL #of moles in sample:0.31825 moles…

A: • Here, we have to calculate the mass , molar mass and number of molecules of sample. •Given that,…

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.709 g of C,Hg? x 10…

A: The number of moles means the number of molecules divided by the Avogadro's number (NA) Or, a number…

Q: How many moles of carbon are in a sample containing 5.32x10^20 atoms C?

A: Given,Number of carbon atoms = 5.32 × 1020

Q: Use the References to access important values if needed for this question. a. How many moles of…

A: The formation of carbon tetrachloride takes place through a photochemical reaction of chlorine atoms…

Q: Mass of zinc coating =0.15g Number of moles of iron = 0.0184 mol Number of moles of zinc = 0.00229…

A: The galvanized iron contains both iron and zinc, whereas the iron core contains only iron. We are…

Q: Sucralose, an artificial sweetener commonly used by diabetic patients, has a formula of C12H19Cl3O8.…

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Q: (Reviev Use the References to access Important values if needed for this question. a. How many moles…

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

Q: 50. How many moles are in a 201.5-gram sample of chlorine gas, Cl,? How many molecules of Cl, are…

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Q: Part C In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol).…

A: Here we have to determine the moles of Cl2 present in 150 g of Cl2 and the mass of 2.90×10^22…

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.