1.What is the amount in moles of 20.0 g of common table salt (sodium chloride)? Show your working.

Q: NAME DATE CLASS ALL ABOUT THE MOLE CONVERSIONS WITH MOLAR RELATIONSHIPS DIRECTIONS: Answer each…

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Q: Use the following to answer questions A-B NaCl + MgO → Na2O + MgCl2 A. If 24 grams of sodium…

A: The answer to the following question is given as:

Q: 9 100 grmas of Sodium and Magnesium contain same number of moles. Select one: True False

A:

Q: What is the mass of 0.49 moles of Potassium Sulfate.

A: Given :- number of moles of potassium sulfate = 0.49 mol  To calculate :- mass (in grams)

Q: How many grams of sodium bicarbonate are in 3.056 moles of sodium bicarbonate (84.007 g/mole)? Group…

A: The number of atoms, ions, and molecules present on a given amount can be determined by the “Mole…

Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work.

A: Molar mass of MgSO4•7H2O = 246.47 g/molMolar mass of MgSO4 = 120.366 g/mol.

Q: 1. Determine the experimental mole-to-mole ratio of Na2CO3 to NaCl from reaction data. a) First,…

A: Note - Since you have asked multiple questions, we will only do the first question for you. To get…

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

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Q: How many molecules are in each sample? A. 2.8g H2O (Express your answer using two significant…

A: Given  (a)   Mass of H2O   = 2.8 gram         Number of molecule = ?  (b)  mass of N2 = 40.8 gram…

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: Balance the following equations. (Use the smallest whole numbers possible. Enter 1 where appropriate…

A: Balanced chemical equation are:

Q: How many moles of glucose does it contain? Express your answer using four significant figures. mol…

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

Q: Calculate the number of LiLi atoms (NLiNLi) in 7.2 molmol of LiLi. Express your answer using two…

A: 1 mol of a substance contains Avogadro's number of  atoms.

Q: How many grams are in 7.22 mol of HF? Express your answer to three significant figures.

A: We would use molar mass of HF to calculate mass in grams in given moles of HF.

Q: How many moles AND molecules of water are present in a gulp of water of 50.0 mL? Use 1.00 g/mL for…

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Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work

A: Molar mass of any substance is the mass of one mole of any substance, which is expressed in g/mol.…

Q: In the following reaction, 2H2 (g) + O2 (g) → 2 H20 (g), how many moles of oxygen (O2) would be…

A: Two moles of hydrogen gas reacts with one mole of oxygen gas to form two moles of water.

Q: A newly found compound was discovered to contain 4 iron atoms. If the molar mass of this compound is…

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Q: Convert 22.89 grams of X3Z4 into moles of the same compound. Assume that the molar mass of X is…

A: Given, Molar Mass of X = 72.43 g/mol Molar mass of Z = 11.84 g/mol Mass of X3Z4 = 22.89 g  Moles  =…

Q: Calculate the mass in grams of 0.167 moles of lithium hydroxide.  Report your to answer to 2 decimal…

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Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work.

A: Quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O =? M.W of MgSO4 = 120.366 g/mol (anhydrous) M.W of…

Q: Part A How many moles are in 20.0 g of CO2? Express your answer to three significant figures. 0.4…

A: Part A:- Carbon has a relative atomic mass of 12. Oxygen has a relative atomic mass of 16.…

Q: Calculate the percent by mass of each element of CaCl2?

A: To find out the percentage by mass of each element, first we should find molar mass of given…

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 grams of aluminum are present in a 4.04 g of aluminum iodide, Ali3

A: Given,  Mass of Aluminium iodide = 4.04 g  Molar mass of AlI3 = 407.695 g/mol

Q: What is the molar mass of lead (II) chloride?  Report your answer to 2 decimal places! (ps thank you…

A: The chemical formula of lead (II) chloride is PbCl2, where the subscript represents the number of…

Q: Calculate the number of grams in the following 0.84 mole of 2-propanol, C3H8O, rubbing alcohol. Must…

A: given : 0.84 mole of 2-propanol, C3H8O, rubbing alcohol

Q: Which one contains greater number of molecules?  25 g of H2O or 25 g H2S?  Explain your answer.

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Q: How many grams are in a mole of O2? Express your answer using one decimal place.

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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: Calculate the mass in grams of 0.167 moles of lithium hydroxide.

A: Given data,Moles of LiOH=0.167molAtomic mass of Li=6.941g/molAtomic mass of O=16g/molAtomic mass of…

Q: D. -5 9. Which of the following is incorrect of 4 moles of MgSO4 (magnesium sulfate)? A. It contains…

A: The formula given is MgSO4  And moles of MgSO4 given is 4

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

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

Q: chemist fermented 7.25 g of glucose. How many moles of glucose are there in 7.25 g?

A: Moles is unit for measuring the amount of substance in SI form. In order to find the number of moles…

Q: How many bananas are in 0.10 moles of bananas? 3.0 x 1023 3.0x 10 21 6.0 x 1022 6.0x 1024

A: Given,  Moles of bananas = 0.10 moles To find, molecules of bananas??

Q: Which compound contains the highest percent by mass of hydrogen? Group of answer choices HCl H2O…

A: Water (H2O) has the highest percent mass of hydrogen.

Q: A. is asking 2.3E23 molecules of sugar would weigh how much in grams B is asking 2.3 moles of h20…

A: (a) Given data contains, Molecules of sugar is 2.3×1023 molecules.

Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work please.

A: Given, mass of MgSO4.7H2O = 2.4 g molar mass of  MgSO4.7H2O = 246.48 g/mol => moles of MgSO4.7H2O…

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: Show your work: a. How many moles is 55 g of NaCl? 0.025 g of NaHCO3? b. How many grams is0.5…

A: moles = mass/molar mass  Molarity  = volume of solute/ Volume  of solution  in litre

Q: A student is trying to figure out how many moles of potassium chloride are made from 4.0 grams of…

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Q: How much chlorine should be produced if 84.2 grams of aluminum chloride and 68.4 grams bromine are…

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Q: How much aspirin in grams can be produced from 4.2 g salicylic acid? MM Salicylic acid=D 138.121…

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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: A Moving to another question will save this Question 40 what is the coefficient of H20 when the…

A: A balanced chemical equation follows the law of conservation of mass. This implies that the mass of…

Q: How many grams of KCIO, are needed to form 20.5 g of O2? 2 KC103(3) 2 KCI(s) + 30z(g) Step 1: Sbow…

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Q: How many grams of NO2 are needed to make 1.5 g of N2? NO2 -->   O2 + N2

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Q: What is the molar mass of lead (II) chloride?  Report your answer to 2 decimal places!

A: Molar mass: Molar mass or molecular weight of a compound is the sum of total mass in grams of all…

Q: Convert 8.2 moles of calcium oxide into grams of calcium oxide. (CaO) choose the correct multiple…

A: Answer - The correct option is (c)

Q: MnO2 + 4HCI -→ MnCl2 + 2H2O + Ch For items 7 to 9: 7. What is the mole ratio of MnO2 to H2O? 8. What…

A: Mol to mol ratio in a reaction is the coefficient present before the compound in the reaction. Check…

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.