Label the diagram to correctly convert 1.02x1024 molecules of O, to moles of O, X- :: 1.02x1024 molecules of O2 :: 6.02x1023 molecules O2 : 1 mol O2

Q: Determine the number of moles present in a 1000 g gold bar. Round off your answer to the nearest…

A: Mass of gold = 1000g We have to determine the no. of moles present in 1000g of gold bar.

Q: Convert 0.0361 mol NH4ClO4 to grams

A: Mass of substance in gram = No. of mole × molar mass

Q: How many moles of KI are in 1.36×1024 formula units?

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Q: Write the chemical formula for 1 mol of compound X containing 2 mol Al and 3 mol O.   X= ?

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Q: Part B Calculate the number of CO2 molecules in 1.19x102 mole of CO2. Express your answer using…

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Q: Convert 1.53 x 1024 atoms of carbon to moles of carbon. 1.53 x 1024 atoms = x10 TOOLS mol C

A: Given,  Number of atoms of carbon = 1.53 x 1024 atoms  Find number of moles of carbon = ?  Using the…

Q: How many moles of KI are in 1.22×10241.22×1024 formula units?

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Q: How many grams O in 283.0 g Fe(OH)3? Molar mass of Fe(OH)3 is 106.867 Hint: 1 mole Fe(OH), has 3 mol…

A: We know that, Number of moles = Given mass / Molar mass  Mass = Number of moles x Molar mass  Number…

Q: Complete the table:   Compound Mass Moles Number of molecules CO2 _____ 0.0105 _____ CO _____…

A: Recall molar mass of the given compounds Molar mass of CO2=44.01 g/molMolar mass of CO=28.01…

Q: The number of moles in various samples is shown in the table below. Determine which sample contained…

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Q: Complete the table:   Compound Mass Moles Number of molecules CO2CO2 _____ 0.0124 _____ COCO _____…

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Q: How many grams O in 283.0 g Fe(OH)g? Molar mass of Fe(OH)g is 106.867 Hint: 1 mole Fe(OH)g has 3 mol…

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Q: Convert 7.61 mol NaCl to moles of CaCl2, using the equation given below.  Round to the nearest 0.01,…

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Q: What is the correct numerical value for the molar mass, in grams, of CO2 A. 12.0 B. 24.0 C. 44.0 D.…

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Q: How many moles of MgSiO, are in 163 g of the compound?

A: Number of moles of a substance is equal to the mass of the substance divided by its molar mass.

Q: Convert 6 mol O2 to atoms oxygen

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Q: Measurements show that unknown compound X has the following composition: element mass % carbon 62.4%…

A: Steps to Empirical Formula Determination : 1. Assume percentage composition as mass of the…

Q: Label the diagram to correctly convert 159.8 of Br, to moles of Br2 : 79.9 Br2 : 159.8 g Br2 : 1 mol…

A: Final answer :- 2 mol of Br2

Q: From mass to moles There are two unknowns in this problem - the grams of potassium carbonates and…

A: Let the mass of the mixture (Na2CO3 + K2CO3) = m Moles of total HNO3 used = n To find: Mass of…

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: Mass of watch glass and evaporating dish:67.511 g   Mass of watch glass, evaporating dish, and Mg…

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Q: Using the equation below,  convert 17.19 grams of water to moles of H2SO4.  Please round your answer…

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Q: STARTING AMOUNT

A: 8.43 * E23

Q: How many formula units are in 2.10 mol of FeCl2? Round your coefficient to three sig figs

A: No of formula units can  be determined by multiplying Avagadro number with the number of moles of…

Q: Suppose that a compound containing copper and chlorine contains 0.01139 moles of copper and 0.03813…

A: According to the question:  moles of copper in compound = 0.01139 moles moles of chlorine in…

Q: Molar mass==Mass of 1 mol of substanceMass of 6.022×1023 particles of substanceMolar mass=Mass of 1…

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Q: Calculate the number of moles represented by 21.7 g Fe.

A: Number of moles of a substance can be calculated by dividing the mass of the substance (g) with…

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: 1. How many MOLECULES of carbon tetrafluoride are present in 1.79 moles of this compound ? Visited…

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Q: using the balanced equation NaCl ----> Na + Cl2. Find the following, moles of chlorine: moles of…

A: Balanced Chemical reaction is given by, 2NaCl → 2Na + Cl2

Q: Part A: Dehydration of a Compound Mass of clean, dry small crucible 13.249 g Mass of Crucible +…

A: Answer: Empirical formula of a compound is the formula in which atoms are represented in their…

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: Measurements show that unknown compound X has the following composition: element mass % carbon 62.6%…

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Q: Determine the number of moles of HH in each sample.   4.70 mol H2O to mol

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

Q: Given molar mass, find the mass in grams of each of the following substances: 2.11 x 1024 201 x 1023…

A: 3. Given that : The number of molecules of CH4 = 3.990 x 1025 molecules The molar mass of CH4 is…

Q: A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound. How…

A: Number of moles is calculated by dividing the given mass with molecular mass A compound contains…

Q: How many total atoms are there in 19.9g of ammonia (NH, )? atoms total atoms: How many moles of N…

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Q: Using the equation below, convert 14.17 grams of water to moles of H2SO4. Please round your answer…

A: Here we are required to convert gram of water into moles of sulphuric acid

Q: Calculate the mass in grams of each of the following samples. (Remember from class that the…

A: Given, a. moles of potassium chromate = 0.251 mol b. moles of lithium perchlorate = 1.51 mol c.…

Q: Given molar mass find the mass in grams in each of the following substance 3.990x 1025 molecules of…

A: Given molar mass find the mass in grams  of the following substance 3.990x 1025 molecules of CH4…

Q: Calculate the number of molecules in each of the following samples. (Remember from class that the…

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Q: Acetylene is a gas used in welding torches. As a fossil fuel it contains carbon and hydrogen. It…

A: Assuming 100 g of the sample. Empirical and Molecular formula =?

Q: 62.254g Mass of empty watch glass and evaporating dish 62.534g Mass of watch glass, evaporating…

A: Answer: This question is based on the law of conservation of mass where value of total mass at the…

Q: Calculate the number of moles of the indicated substance for each of the following samples.…

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Q: Which of the following is a valid conversion factor to use when converting between atoms and moles?

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

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

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.