Determine the mass in the given amount of each substance. Show or explain your work. a. 0.00825 moles of calcium carbonate (chalk) b. 6.14x10 moles of lead (VI) bromide c. 19.25 moles of dinitrogen monoxide (laughing gas)

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: 9. Consider the following compound: FeCl, a. What is the name of the compound? ( b. What is the…

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

Q: Determine the number of atoms in 30.0 g of S.

A: The given mass of S is 30.0 g The molar mass of S is 32 g The conversion of mass to moles can be…

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: A compound containing nitrogen and oxygen is found to contain 1.52 g of nitrogen and 3.47 g of…

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Q: ind the number of atoms in 9.4 g B. answer in units of atoms

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: The moler mass of sulfur tetrafluoride is A. 54.10 g\mol B. 358.60 g/mol C. 108.07 g/mol D.…

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Q: Calculate the number of moles in the following samples. Show all work. a. 0.869 g of WO2 b. 2.200 g…

A: Since we know that number of mole of a sample is calculated as  Number of mole = given  mass / molar…

Q: pure density liquid A. 31. What is the density of a mixture that is 2.3 moles A and 2.7 moles B?…

A:

Q: 2.Calculate the percent composition for each element: a. A sample of a mixture of metals containing…

A: The percent composition of any element is defined as the ratio of mass of that element to that of…

Q: You have a beaker containing 325.9mL of H2O and 14.55g of CaBr2. Calculate the mass percent.

A: Mass percentage ( % w/W ) :  mass of solute in grams present in 100 mL of solution is called mass…

Q: A chemist weighed out 7.9 g of gallium. Calculate the number of moles of gallium she weighed out.…

A:

Q: which has the correct number of atoms in one molecule of dichlorine momooxide A. contains three…

A: To determine No of Atom in a molecule, we must know the molecular formula of that molecule Then we…

Q: You weigh 3.6g of sodium carbonate on the balance in lab. a. What is the mass, in amu, of one…

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Q: 2. Consider the compound potassium hypochlorite. a. Write out the formula for potassium…

A: 2. We have to answer the following questions Write the formula of the potassium hypochlorite.…

Q: You have 53 carbon atoms. What is the mass? Which units should you use g/mol or amu? a. 686.58 amu…

A: Answer: No option is correct. The correct answer is 636.53 amu We should use amu unit instead of…

Q: Determine the number of moles in the given amount of each substance. Show or explain your work. a.…

A: 1 mole of any element / compound contains 6.02 * 1023 atoms / molecules  of that substance. Mass of…

Q: Draw a formula unit of calcium chloride and use that to determine the chemical formula of the 5.…

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Q: How many formula units are in 0.761 g of iron(III) nitrate?   A. 1.89 x 1021 f.u.   B. 3.13 x…

A: Interpretation: The amount of formula units are in 0.761 g of iron(III) nitrate is to be calculated.

Q: 10. What does Avogadro's number represent? a. the number of atoms in 1 mol of an element b. the…

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Q: Quantity 1. Mass of crucible + cover 2. Mass of crucible + cover. Magnesium 3. Mass of Magnesium 4.…

A: Empirical formula: The formula in which the simplest whole number ratio of constituent atoms ( that…

Q: Calculate the percent by mass of each element in the following compounds. a. Methane, CH4 b.…

A: Percent by mass is simply the ratio of atomic mass of element present in compound to total molar…

Q: Determine the mass of one mole of sodium chloride.

A: Answer - the basic formula is - In the given question, mole of NaCl given =1. So here, mass = molar…

Q: How many atoms of Hydrogen are in 1.96 moles of Hydrogen?

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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.