There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What mass of Mg is in the sample? grams Mg Hint: What is the ratio of Cl to Mg in the formula? mass magnesium Enter

Q: i) Calculate the number of moles in 4.79 g of N2O4. ii) How many grams are found in 2.145 mol of…

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

Q: How many atoms of C are in a sample 1.0 mol sample of C7H16C7H16? 9.73⋅10249.73⋅1024…

A: We have asked for the number of carbon atoms in 1 mole of C7H16

Q: How many carbon atoms are in a diamond (pure carbon)with a mass of 38 mg?

A: The mass of diamond is 38 mg The molar mass of carbon is 12.01 g mol-1

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: A sample of pentanol, C5H120, contains 1.69 mol of the compound. Determine the amount (in mol) of…

A:

Q: how many Sn atoms are in a 48.7 g sample of Sn?

A:

Q: In the following question: How many g would 4.38 x 1024 atoms of lithium be? You would start with…

A: Given that: Number of Li atoms = 4.38 X 1024  atoms To convert atoms to grams we have to apply…

Q: While experimentally evaluating the empirical formula of magnesium oxide, a scientist determines…

A: Given :moles of magnesium = 0.013 molmoles of oxygen = 0.0091 molWe need to calculate the empirical…

Q: 1. How many sodium atoms are in 1.3 mol of sodium? 2. How many electrons are in 1.5 x 10-3 mol of…

A: Here we are required  to find the number of atoms present in 1.3 mol of sodium

Q: How many bromine atoms are contained in 8.94 moles of bromine molecules?

A: Given :-  Number of moles of Br2 = 8.94 mol  To be calculated :-  Number of Br atoms

Q: How many atoms are in 4.50 mol of potassium? 4.50 mol = atoms How many moles are in 5.94 x 1024…

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Q: The principal components in air are oxygen, nitrogen, argon, and carbon dioxide. Air is…

A: The air is composed of 78% nitrogen gas, 21% oxygen gas, 0.93% Argon gas and 0.04% carbon dioxide…

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: Consider a sample of carbon tetrafluoride that contains 1.09 × 10²⁴ atoms of fluorine. 1.) Using…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

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: How many moles of tin atoms are in a pure tin cup with a mass of 43.8 g ? v= ? mol

A: Mole concept:  According to Avogadro concept, the number of atoms in one mole of the substance is…

Q: Tab [Review Topics] [References] Use the References to access important values if needed for this…

A: Given, (1) Number of moles of sulfur dioxide = 1.62 moles Then, To calculate the number of atoms of…

Q: Complete the following table. Mass of Sample 4.73 g C6H₂ Submit Answer g 9 Moles of Sample 0.220 mol…

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Q: Determine the mass, in grams, of 0.400 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A: => Mole = Mass ÷ Molar Mass      Mass = Mole × Molar Mass

Q: How many moles of atoms are present in 154 g of HCl?   A) 4.22 mol B) 8.45 mol C) 0.0270 mol D) 2.00…

A: Given  Mass of HCl = 154 gram  Number of mole of atom = ?

Q: How many atoms are present in 2 moles of Fe ?

A:

Q: Determine the mass, in grams, of 0.245 moles of Pb (1 mol of Pb has a mass of 207.2 g).

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Q: Determine the mass, in grams, of 0.330 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A: The given moles of Pb can be converted to mass by using the formula given below as; Mass = Moles ×…

Q: Determine the mass, in grams, of 0.745 moles of Co (1 mol of Co has a mass of 58.93 g).

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Q: How many moles of carbon atoms are in one mole of carbon dioxide?  how many moles of oxygen are in…

A: Moles can be calculated using the mole ratio.  For mole ratio we check the number of atoms in given…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

Q: Which sample contains the largest number of chlorine atoms? 10.00g of copper (II) chloride 10.00g…

A:

Q: Consider 1.00 g of Copper (Cu) metal. How many Cu moles are present in this sample? How many Cu…

A: Since moles of element = mass of element / Atomic mass of element  Atomic mass of Cu = 63.5 g/mol…

Q: II) Avogadro's number, Moles and Molar Mass a) How many neon atoms are in 4.48 mol of neon? b) What…

A: I mole of a substance is equal to 6.023 X 1023 units of that substance (atoms, ions or Molecules ) .…

Q: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

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

Q: How many molecules are contained in 38.33 grams if NO2? First determine the molar mass of NO2. Can…

A: Given, Mass of NO2 = 38.33 g  Atomic mass of N = 14.0067 g/mol  Atomic mass of O = 15.999 g/mol NA…

Q: How many grams of the nonmetal are in compound C?

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Q: A flask contains 3.75 moles of hydrogen gas. How many hydrogen molecules are present in the flask?…

A: We are having 3.75 moles of hydrogen gas. Hydrogen gas exists as H2 molecule.

Q: Which sample contains the greatest number of atoms. A sample of Kr that contains 5.33x1024 atoms or…

A: Avogadro's Number NA  => Avogadro's number, NA represents the number of atoms or molecules that…

Q: How many moles of N2O are represented by 8.55 g of N2O The atomic mass of Nitrogen is 14.01amu and…

A: Given  Atomic  mass of Nitrogen (N)  = 14.01 amu Atomic mass of oxygen (O) = 16. 00 amu Mass of N2O…

Q: How many grams of PCl3 would be needed to produce 8.75x1024 atoms Cl? digit _______ (your answer…

A:

Q: How many moles of V are there in a sample of V that contains 4.00 moles atoms

A: number of moles = give no. of atoms / Avogadro number Avogadro number = 6.022 X 1023 mol-1 Number…

Q: Which sample contains the largest amount of atoms? 6.75 mole of C, 2.35 mole of Fe, 10.6 gram of…

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Q: How many moles of oxygen atoms are present in a sample that contains 3.24 moles of NO2?

A: 1 mol of NO2 contains 2 moles of Oxygen atoms.  Given moles of NO2 = 3.24

Q: How many atoms are present in a 0.300-mole sample of gold?

A: The number of molecules from the number of moles of a compound can be determined by Avogadro's…

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.