Question 8 of 11 Determine the number of moles in 4.21 x 1023 molecules of CaCl2 STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 77.6 1 6.022 x 1023 6.99 75.53 4.21 x 1023 3.79 x 1021 0.699 110.98 g Caclz g CaClz/mol molecules CaCl2 mol CaCl2

Q: Question 3 Define the following terms: Law of definite proportions [Select] Mole [Select] Molar mass…

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Q: Calculate the number of moles in the following quantities: | Correct. 1.94 g NaHCO3 0.0230 mol the…

A: 1) Since molar mass of NaHCO3 = Atomic mass of Na + Atomic mass of H + Atomic mass of C + Atomic…

Q: HELP me please

A: In the given chemical reaction, two atoms of Al react with three formula units of Cl2 to produce two…

Q: convert 5 moles of K to molecules of K

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

Q: QUESTION 4 How many grams of NH4NO3 (80.05 g/mol) are present in a 2.68 mol sample? O 346 g NH4NO3 O…

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Q: Magnesium has an electronegativity value of 1.3, and oxygen has an electronegativity value of 3.4.…

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Q: Which of the following is included in all the conversion factors we've used in this unit so far? A.…

A: We have to find out which conversion factor is used in the given calculation.

Q: How many atoms of oxygen are in the chalk in your name?

A: Mass of a piece of chalk = 38.40 g  Mass of chalk after writing name on the board = 38.35 g  Mass of…

Q: A certain dose of Tums contains 1000.0 mg of calcium carbonate, CaCO,, in each tablet. In this…

A: as per Q&A guidelines of portal I solve first image problems because it comes under multiple…

Q: Please help

A: The balanced chemical equation between magnesium and hydrogen chloride is given by

Q: can you solve these 2 and just provide the answer I solved most of the work I just wanna make sure…

A: A mole of a substance can be defined as the mass of that substance that contains the same number of…

Q: Concentration of H2SO4, mol/L 0.104 0.104 0.102 0.105 Average Concentration 0.104 mol/L Question…

A: Deviation is the difference between the mean value and the observed value. Deviation=x-xmean Average…

Q: Question 8 of 14 Determine the quantity of molecules in 1.40 moles of CO

A: To solve this problem we have to calculate the number of Carbon monoxide molecules .

Q: Question3 part d

A: The formula of allicin is C6H10OS2 and the molar mass of this is 167.2716 g/mol.

Q: 3. How many grams are in 3.45 X 10-4 formula units of FeO? 4. How many moles are in 69.3 g of…

A: 1 mole = 6.022×1023 (Avogadro's number ) The mass of one mole of formula units of an ionic substance…

Q: 2.00 moles of water contain ---- number of water molecules.   Question 11 options:   18.02…

A: Given,

Q: A chemical reaction occurs that involves combining 1 atom of zinc with 2 atoms hydrogen and 2 atoms…

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Q: Convert 0.377 g aluminum to moles of aluminum. Group of answer choices 71.6 moles 0.140 moles 28.4…

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Q: How many moles of water is 6.36 x 1022 molecules? No.of representative particles No. of moles = 6.02…

A: Given  Molecules of water = 6.36 x 1022 molecules

Q: If you were asked to convert between moles of A and moles of B according to the equation below, what…

A: Stoichiometry describes the relation between the reactants and products in a chemical reaction to…

Q: Table 1. The relationship between mass, mole and number of particles Formula of Molar mass Mass (g)…

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Q: The molar mass is 876.16 g/mol.    If you have 5.0 mL of this oil, how many moles does it contain?…

A: Given --> Density = 0.79 g/mL  Molar mass = 876.16 g/mol  Volume = 5 ml  Density = Mass / Volume…

Q: How many molecules are in 1 mole of CóH1206?

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Q: How many moles are in 9.26 x 1023 molecules of NH3 ? Do not put units in your answer. Do use proper…

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Q: Determine the quantity of moles of hydrogen in 3.06 x 10 g of glycine, C₂H5NO₂?

A: mass of glycine = 3.0610-3 gmolar mass of glycine = 75.08 g/molmoles of hydrogen =?

Q: how many moles of Mg(No3)2 are in 6.35x10^24 formula units of Mg(NO3)2?

A: Since, Number of formula units of  Mg(NO3)2 = 6.35×1024 formula units then, Moles of Mg(NO3)2=?

Q: STARTING AMOUNT X Determine the quantity of moles in 4.21 x 1023 molecules of CaCl ADD FACTOR x( )…

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Q: 3. Convert 0.36 moles Ba to g of Ba

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Q: Determine the number of moles and the mass of copper(II) carbonate needed to produce 1.500 kg of…

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Q: How many moles of propylene (CsHs) are in 25.0 g of the substance?

A: Given that, 25.0 g of propylene. We have to calculate the moles of propylene. Introduction: We know…

Q: Instructions for question: Drag a number to the blank boxes on the diagram. If the number you need…

A: Mass of H2= 15.6 g Moles of NH3=? Molar mass of NH3= 17.03gm/mole Molar mass of H2 = 2.gm/mole

Q: For the preceding question, which of the following equations best represents the reaction?   6N2 +…

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Q: The analysis of a compound shows it contains 5.4 mol C, 7.2 mol H, and 1.8 mol N. What is the…

A: Step 1) Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

Q: QUESTION 6 The number of molecules of 2.53 g C7H6O3 is: 1.10x1022 molecules 138 molecules 3.04x10 26…

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Q: MOLES/MOLECULES T04/S14 If a sample of POCI, is found to contain 6.58 mol of O atoms how many moles…

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Q: Question: How many grams of oxygen gas are formed with 3.09 mol of KClO3are decomposed according to…

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Q: Which of the following shows how to convert 35 grams of N2 into grams of NH3 using the equation…

A: We have to predict the correct expression for calculating mass of ammonia.

Q: Question 4 of 37 Determine the amount in grams of KCI that exists in 20.3 g of a solution that…

A: Weight of solution= 20.3 gm  %KCl by mass = 1.14 %

Q: Complete each row with proper significant figures Substance  Molar mass, g/mol Mass in grams Number…

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

Q: Examine the pie graph below. What is the molar mass of compound X? Mass Contributions to 3.0 mol of…

A: In the given pie chart: The total mass of the various elements in the compound X must be calculated…

Q: Please provide detailed steps as I am using this to study, along with explanations as to what you…

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Q: 0 Question 16 Consider the following hypothetical unbalanced equation: D6+ Z --> DZ How many moles…

A: The unbalanced equation is Balance D : There are 6 D atoms on the left side. To balance, multiply DZ…

Q: Question 10 How many grams of carbon tetrachloride, CCI4, are needed to produce 4.18 kg of chromic…

A: The given chemical reaction is given as follows,Cr2O3    +         3CCl4       →         2CrCl3…

Q: How many molecules are in 1.7 moles of ammonia, NH3? a) 1.0x1024 molecules b) 3.5x1023 molecules c)…

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Q: An organic acid is composed of carbon (58.806), hydrogen (9.89%), and oxygen (31.33%). Its molecular…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: e quantity of moles of

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Q: Multistep Problems: Avogadro's Number and Molar Mass 10. How many atoms of tin (Sn) are in 1.84 g of…

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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.