many choice question A mole literally translates as "pile" in Latin. It is also a chemist's counting number as it contains an Avogadro's number of items in one pile. Which of the following is equivalent to one mole? A. 6.02x1023 molecules of H,0 B. 76.32 g Zn C. 58.45 g NaCI D. 1.34x1025 atoms of Au E. 110.21 g SO, F. 5.31x1023 molecules of O2 G. 39.95 g Ar

Q: Element Moles Number of Atoms Ne 0.466 Ar Xe He 1.90 3.78x1024 1.28×1020

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Q: Which of the following has the most moles of substance? a. 10.0 g He b. 5.0 x 10²³ atoms Ne c.…

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Q: 13. How many oxygen atoms are in 225 g of O2? a. 4.23 x 1024 b. 6.84 x 1024 c. 8.47 x 1024 d. 1.69 x…

A: Number of Atoms of Oxygen can be calculated as -

Q: How many hydrogen atoms are in 0.050 moles of C3H8O3? О а. 3.0 x 1022 hydrogen atoms O b. 6.6 x…

A: Option (e) is correct answer.

Q: Which one of the following is made up of formula units? O A. NazP O B. Mg OC.F2 D. CH4

A: Formula units :-  An ionic compound is made up of formula units. Ionic compounds consists oppositely…

Q: Calculate the number of particles of each elements/ compound contain. 1. 9.2 moles of NBr3 2. 4.74…

A: Given: Moles of NBr3 = 9.2 mol Moles of gold = 4.74 mol Moles of Mg= 9.2 mol

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

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Q: 0.4 moles of calcium carbonate contains how many carbon atoms?     A. 1.2 x 1023   B. 4.8 x…

A: The formula of calcium carbonate = CaCO3  Molecular weight of CaCO3 is 100 gm/mol  1 mole CaCO3 =…

Q: 1. What is the mass of exactly one mole of HO3Br? Answer to the nearest 0.01 g.   2. What is the…

A: Given, Number of moles of HO3Br = 1 mole      Required,                             1. Mass of…

Q: Using your correct formula for copper chloride writes a balanced equation for the reaction that took…

A: Given : mass of copper chloride = 1.750 gram  To find : balanced chemical equation.  Solution : As…

Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? A. 4.330 x 103 O…

A: Given: Mass of carbon = 52.00 mg = 52×10-3 g (since 1 g = 103 mg) Atomic mass of carbon = 12 g/mol

Q: : How many atoms of oxygen are in 3.52 moles of calcium nitrate? A. 1.91 x 10^25 atoms O B. 2.12 x…

A: E. 1.27×1025 atoms of Oxygen Given that,  Moles of Ca(NO3)2   = 3.52 mol Moles of Oxygen in 3.52 mol…

Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A: Given:X = 10.0 gSampleMass of E1Mass of E2112.2 g13.8 g212.5 g14.4 g36.1 g6.9 g411.7 g13.3 gFind out…

Q: What mass of Fe₂O3 is produced when 16.2 L of O₂ gas react with FeS at 458 K and 5.29 atm. 4 FeS (s)…

A: Given reaction 4FeS (s) + 7 O2 (g) -------> 2Fe2O3 (s) + 4SO2 (g)  Volume of O2 (V) = 16.2 L…

Q: 5. A 295 g sample of unknown metal is at an initial temperature of 13.00 °C absorbs 75.0 kJ. The…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: A mystery compound has a molar mass of 28.1 g/mol. How many moles is 98.4 g? Do not put any units in…

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Q: One mole of oxygen molecule (02) contains how many atoms of oxygen? a. 6.022 × 1023 O b. 1,6021 ×…

A: We have to tell the no. Of oxygen atom in 1 mole

Q: 152 A 352.44 155 T 362.31 153 G 355.67 156 X 365.88 154 D 359.12 157 Z 369.52 You time travel 100…

A: Avogdro's number - Collection of 6.022× 1023 particles / molecules called Avogdro's number  1 mole =…

Q: Classify each compound as ionic or molecular. a. CO2 b. NiClz c. Nal d. PCl,

A: Ionic solids are made up of positive and negative ions and these ions are held together by…

Q: a formula unit of

A: Since you have asked multi parts we will solve the first three subparts for you. If you want any…

Q: What would you multiply "atoms of calcium" by to get the units "moles of calcium"? atoms Cax = moles…

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Q: The number of moles of atoms in one mole of carbon dioxide gas, CO2, is

A: Given :- number of moles of CO2 = 1 mol  To calculate :- number of moles of atoms in 1 mol CO2

Q: QUESTION 4 How many molecules of Fe2O3 are in 5.00 g of this compound (molar mass = 159.69 g/mol)? O…

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Q: What is the number of moles in 432 g Ba(N03)2? A) 3.25 B) 0.605 C) 0.237 D) 1.65 E) 113,000

A: Answer 2: Introduction: mole: As per the international system of unit (SI) , mole is the unit of…

Q: What is the mass in grams per mole?

A: Information about the question

Q: How many oxygen atoms are present in 3,0 x 1023 molecules of Ca(NO3)2?   A. 6.0 x 1023   B. 1.5…

A: 1 molecule of Ca(NO3)2 have 6 oxygen atoms as NO3 have 3 oxygens and (NO3)2 will have 3 x 2 = 6…

Q: 3. A 2.241 g sample of nickel combines with oxygen to produce 2.852 g of a metal oxide. a. Calculate…

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

Q: 5. Determine the number of moles of the compound and determine the number of moles of each type of…

A: Applying concept of mole calculation.

Q: Determine the mol H20/mol CaSO4 if you have the following data to two decimal places (MM H20 =18.02…

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Q: 26. Write the formula for oxygen gas. 27. How many atoms (and moles) are represented by the formula…

A: 26. Oxygen is a diatomic gas and the molecular formula of oxygen gas is O2  One mole of oxygen gas…

Q: An experiment was performed in lab to produce 10.3 grams of Ca(OH)2, however the calculations…

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Q: AtomIs Molar mass Molels Element loaal 23 12.04X 10 29 c3546 63.5462 copper Gold 393.942 Ag Au…

A: From molar mass we can calculate the no of atom present in the molecules .

Q: 125 grams of sugar (C12H22011) is _ mole? Select an answer and submit. For keyboard navigation, use…

A: The given data is as follows: The mass of the sugar = 125 g The moles of sugar = ? To calculate the…

Q: 10. One mole of Sulfur is 32.06 g. How many moles would be found in: a. 85.9 g of Sulfur b. 10.57 g…

A: given 1 mole sulfur = 32.06 g

Q: Question 1: Select the best answer for the following questions? 1. Number of ions in 0.5 mole of…

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Q: 1. How many grams are present in 12 atoms of Potassium? a. 7.8 grams b. 3.91 x 10-22 grams 39.1…

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Q: Find the number of O, molecules in 2.5 mol of oxygen (atomic mass of O=16) Select one: 23 O a. 1.5 x…

A: We have given that  Moles of O2 = 2.5 mole Atomic mass of Oxygen = 16 g/mole

Q: What is the total number of atoms contained in 3.00 moles of cobalt?

A: Given :- number of moles of Co = 3.00 mol  To calculate :- number of atoms of Co

Q: 0. How many grams of platinum contain the same number of atoms as 49.5g of mercury?

A: Applying mole concept and number of atoms.

Q: Question 1 options: A. The Mole We will use the analogy of an elephant and its body parts to…

A: One carbon tetrachloride, CCl4 molecule has one carbon C atom and four chlorine Cl atoms .We have…

Q: Find the mass of 1 molecule of NaH in gram. а. 23.99 b. 3.98 x1023 С. 12 d. 3.98 x10-23

A: Atomic mass of sodium (Na) and hydrogen (H) atoms are as follows; Atomic mass of Na = 22.99 g/mol…

Q: The formula for sulfur dioxide is . A. How many molecules are in 2.64 grams of sulfur dioxide?…

A: The formula for Sulfur dioxide is :                    SO2 Given:For part Agiven mass of SO2…

Q: QUESTION 1 How many moles are there in 88 g of CO2 sample? O A. 18 moles OB. 1 mole O C. 2 moles O…

A: Since you have asked multiple questions we will solve the first question for you. To get the…

Q: Suppose that a compound containing copper and chlorine contains 0.01044 moles of copper and 0.01517…

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Q: A molecule contains only carbon and hydrogen. The percent hydrogen is 27.45 %. Determine the…

A: The emperical formula of the compound is given below

Q: Research suggests that a daily dose of 85 mg aspirin (molar mass = 180.17 g), may reduce a person's…

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Q: How many atoms of hydrogen are present in 4.54 g of ammonia? A. 6.64 x 1019 B. 8.20 x 1024 O C. 1.61…

A: We know that , 1 mole of substance contain  = 6.022 × 1023  atoms By using this relation , we can…

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.