How many sodium ions are contained in 99.6 mg of Na2SO3?  Please show how you calculated this answer? Thank you

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

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Q: How many grams of NaCl are present in 8.39x1022 formula units of NaCl? a) 0.139g b) 2.38 x 10-3g…

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Q: How many moles are in 29.4 g of chloroform? Express your answer in moles.

A: First we have to calculate molar mass of chloroform i.e. CHCl3. For this we have to know atomic…

Q: How many moles of CC are present in 2.80 moles of naproxen?

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Q: Calculate the percentage by mass of water in magnesium sulfate heptahydrate, MgSO4•7H2OEnter your…

A: MgSO4.7H2O is also known as Epsom salt and it contains 7 molecules of water as water of…

Q: A compound of potassium had the following percentage composition: K 28.73%; H 1.481%; P 22.76%. The…

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Q: How to determine the number of moles of the C8H10N4O2, C,H,N,O in 0.1119mg of caffeine C8H10N4O2?…

A: The moles of compound is calculated by the following formula,

Q: Calculate how many grams of chlorine gas are in 7.099 x 1023 atoms of chlorine gas

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Q: The moles of Glucose (C6H12O6) in 18 grams of Sucrose is 342 0.1 0.01 34.2

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Q: How many moles are in 85.62 g of Na2CO3?

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Q: grams are in 1.55 moles of CaCI2

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Q: How many moles of NaOH are in 2.2x1025 formula units of NaOH? Round your answer to 1 decimal place.

A: Given data,  Formula units of NaOH = 2.2 × 1025  Formula units of 1 mole NaOH = 6.022 × 1023

Q: How many moles are in 12.1 grams of acetic acid (CH3COOH)

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Q: How many N atoms are present in 4.2 mg of theobromine?

A: Structure of theobromine -   Molecular formula of theobromine = C7H8N4O2 Molar mass = Mass of ( C x…

Q: How many moles are present in 49.2g of sulfur?  Report your answer to 2 decimal places

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Q: FOLLOW-UP QUESTIONS (Show all your work) 1. A hydrated substance was found to have the following…

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Q: A 5.000 gram sample that contained NaCl and BaCl2*2H2O was heated. After heating the sample had a…

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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: Ascorbic acid (C,H306) is also known as Vitamin C. How many molecules of C,H,0, does a Vitamin C…

A: Given,

Q: Calculate the number of moles of MgSO4 in 10.0 g of this compound.

A: Molar Mass is defined as the mass of the substance present in one mole. Mole is the chemical unit…

Q: Calculate the n factor of 0.25 N Cupric Chloride.

A: The n-factor defines the number of the moles of the electrons exchanged (gained or lost) by 1 mole…

Q: How many grams is one mole of sodium hydroxide NaOH

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: The formula for lactose is C12H22O11, and the monohydrate is C12H22O11*H2O. What is the percent by…

A: The formula of lactose is = C12H22O11 The formula of lactose monohydrate is = C12H22O11*H2O The…

Q: How many grams of nickel(ii) acetate contain 4.37 grams of Ni2+?

A: nickel (ii) acetate = Ni(CH3COO)2 Molar mass = 176.781 g/mol Molar mass of Ni = 58.69 g/mol  Given,…

Q: Calculate the number of moles in 143.0 grams of methane (CH4) gas.

A: In order to calculate number of moles of any compound or a gas we need mass  and molar mass of that…

Q: Calculate the number of LiLi atoms in 8.5 moles of LiLi.   Express your answer using two significant…

A: Answer:- This question is answered by using the simple concept of calculation of number of atoms…

Q: How many moles of NaCL are in 0.58 g of NaCL?  (Show your calculations)

A: The molar mass of the ionic compound, NaCl, is 58.44 g/mol that mean one mole of NaCl has a mass of…

Q: Part C How many moles are in 20.0 g of MgCl2 ? Express your answer to three significant figures.…

A: Mole concept:  A mole  is the quantity of a substance that contains atoms, molecules, ions,…

Q: Calculate the amount of moles in 1.10 grams of iron(III) chloride (FeCl3). • Your answer should have…

A: Given the amount of iron(III) chloride in grams, we are asked to calculate the amount in moles.

Q: How many moles are in 450 grams of nickel nitrate

A: Given: Mass of nickel nitrate=450 g The molar mass of nickel nitrate=182.7032 g/mol

Q: 2. Calculate the number of moles in 500 mg Na SO?. (MW of Na,SO,=293.8 mg/mmol). Dr. Marwa Nizar…

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Q: How many grams of C are in 34.50 mg of sodium carbonate (Na2CO3)?

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Q: Calculate mass (in grams) of sodium in 8.5 g of sodium-containing food additive. NaCl (table salt)

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: Percentage by mass  = (Mass of element in 1 mole of compound/molar mass of the compound) × 100%…

Q: How many moles are present in 43.8 g of potassium hydroxide, KOH? What is the percent composition of…

A: The number of moles present in 43.8 g of KOH has to be calculated, The molar mass of KOH is 56.10…

Q: How many grams of NaCl are in 35.6 moles of NaCl? 1 2. 3 4 8 +/- 7.

A: Moles can be defined as the mass of solute divided by the molar mass of the solute. i.e.…

Q: How many grams of magnesium chloride are present in 0.7643 moles of sample

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Q: Calculate the number of moles in a 7.89 kg sample of aspirin

A: No. Of moles = Given mass/molar mass

Q: How many moles are in 10.0 g of NaBr?

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

Q: alculate the molecular weights of the following compounds. Show your complete solution. 1. NH4OH

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Q: Quinine, C20 H24N2O2, is a component of tonic water and bitter lemon. Part C How many moles of…

A: Number of moles of N = number of moles of quinine × number of N per mole of quinine

Q: How many moles are present in 4.01g of lithium?  Report your answer to 3 decimal places

A: Concept- moles = weight/ atomic mass

Q: How many grams of ethanol , CH3CH2OH , are in 0.60 moles of ethanol?

A: Condensed formula for CH3CH2OH is C2H6O Molar mass of ethanol (C2H6O) = Atomic mass of C x 2 + H x 6…

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

A: we know, moles is defined as the mass divided by the molar mass => moles = mass / molar mass…

Q: How many moleculesof allicin are in 5.00 mg of this substance?

A: Given information: Mass of allicin = 5.00 mg

Q: Calculate the mass (in grams) of 4.54 × 1020 molecules of hydroxychloroquine, C18H26ClN3O. Report…

A: Mass of the 4.54 × 1020 molecules of hydroxychloroquine, C18H26ClN3O can be calculated by using the…

Q: Calculate the number of CO2CO2 molecules in 6.20×10−2 mole of CO2CO2.   Express your answer using…

A: The correct answer is given below

Q: Convert 36.45 moles of X5Z3 into grams of the same compound. (Assume that the molar mass of X is…

A: Given data: Number of moles of X5Z3 = 36.45 moles Molar mass of X = 76.97 g/mol Molar mass of Z =…

Q: How many moles are in 255 grams of sodium phosphate

A: Number of moles is calculated as, Number of moles = Mass in gramMolar mass

Q: Ascorbic acid (C&H$O6) is also known as Vitamin C. What quantity in molecules of C6H&O6 does a…

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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.