how many moles of Kr are contained in 398 mg Kr?

Q: How many moles of Kr are contained in 398mg of Kr?

A: Given Mass of the  kr=398mg    convert  into g =398mg1000=398×10-3 mgatomic mass of the…

Q: How many moles of KBr are in 64.9 grams of KBr?

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Q: Calculate the number of moles of chlorine present in 100 g of chlorine gas.

A: We have to predict the moles of chlorine gas.

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

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Q: how many grams are in 0.456 mole P

A: P is a symbol of phosphorus element.

Q: How many moles are in 78.9g of HCl?

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

A: Given  Mass of calcium = 133 gram  Molar mass of Calcium = 40 gram/mole Number of atom = ?

Q: What is the total number of NO2 molecules in 0.25 mole of NO2 gas

A: Given  Number of mole of NO2  = 0.25 mole According to Avogadro's  1 mole of any substance contains…

Q: How many molecules are in 502.1 g of LIF?

A: Mass of LIF = 502.1 g Molecular weight = 25.939 g/mol Molecule= ?

Q: how many molecules of water are present in 75.0 g of H20?

A: 1 mole of water that is 18 g contains 6.022 * 1023 molecules.

Q: How many moles of NaOH are

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Q: Convert 26.7 grams of MgSO4 to moles of MgSO4

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Q: How many moles are contained in 0.210 potassium hydroxide?

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: How many moles are present in 13.14 g of copper(I) chloride?

A: e part

Q: How many moles of BaCl2 are present in 26.17g of BaCl2

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Q: Convert 32 grams of C₂H₅OH to moles.

A: The given mass of C2H5OH is 32 g. The molar mass of C, H, and O is 12.011 g/mol, 1.008 g/mol, and…

Q: How many moles of Nal are in 58.5 grams of Nal

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Q: How many moles are in 15 g Li?

A: Recall the following expression of moles           moles=given mass of a compoundin gmolar mass of…

Q: Determine how many grams of H2S (34.1g/mol) contain the same number of molecules as 29.9g of H2O2…

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Q: How many moles of LiN3 are present in 7.56 grams of LiN3

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Q: How many moles are in 16.7 gg of allyl sulfide?

A: The chemical formula of allyl sulfide is (C3H5)2S. Molar mass of allyl sulfide = 2×{(3×12)+(5×1)} +…

Q: How many moles are in 22 grams of argon

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Q: . The formula for ibuprofen is C3H1O2. How many moles of ibuprofen are present in 250.0-mg tablet?

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

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: How many moles of allicinare present in 5.00 mg of this substance?

A: Allicin is a chemical compound that characteristic smell of garlic. The chemical formula of allicin…

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 moles are present in 20.4 g of sodium nitrate?

A: * Moles of compund = Mass of compund/ molar mass of compound By using this we can calculate the…

Q: 325.2 g sample contains 42.3% NaCl. How many grams of NaCl are in the sample?

A: Mass of the solution is = 325.2 g The concentration of the solution is = 42.3 % NaCl Mass of NaCl in…

Q: How many sulfite ions are contained in 99.6 mg of sodium sulfite?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: How many grams of S are in 775g of SO2?

A: The mass of SO2 is = 775 g The mass of S in this amount of SO2 is =?

Q: How many moles would contain 12.0 g of P?

A: Introduction: As per the International system of units (SI), the moles is the unit of measurement…

Q: moles

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Q: How many moles are there in 25 g of CO2 gas? How many molecules?

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Q: How many chlorine molecules are contained in a 151.34 g sample of chlorine?

A: To know the number of molecules, first we have to know the number of moles. Moles = Given mass /…

Q: How many moles are in 4.5 moles of CCl4

A: Number of moles of CCl4 = 4.5 mole

Q: How many moles of O are present in 12 g of CO?

A: Given information is as follows:         The mass of CO given = 12 g The moles of O present in CO =…

Q: How many moles are present in 19.4 g of N2 and 19.4 g of F2?

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

Q: How many moles of water, H2O, are present in 75.0 g of H2O?

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Q: How many moles are in 25.3 grams of NaCl?

A: Given :- mass of NaCl = 25.3 g  To calculate :- number of moles of NaCl

Q: 10. How many moles are contained in 106.2 g of CH42

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Q: moles

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Q: Determine the number of moles in 4.50 × 10²³ formula units of CaBr₂

A: Given: Formula units of CaBr2 = 4.50 × 10²³  To determine: The number of moles in 4.50 × 10²³…

Q: How many moles of CH4 are contained in 96.0 grams of CH4?

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Q: what mass of lead is contained in 56.6g of lead(IV) fluoride?

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Q: How many grams of Na are present in a 15 g sample of NaCl?

A: The number of moles for a given chemical species can be defined as the ratio of mass to the molar…

Q: How many moles of calcium chloride are present in 120. g of calcium chloride?

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Q: How many grams are in 4.6 moles of MgS?

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

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Q: How many moles of oxygen (O2) are in 20 grams of oxygen (O2) gas?

A: Numbers of a moles-The mass of a substance that contains 6.023 x 1023 particles of the substance.…

Q: How many molecules of HCl are present in 0.250 mol of HCl?

A: The number of molecules of HCl are present in 0.250 mol of HCl has to be calculated,