How many molecules (units) are in 3.50 moles of H2SO4 ? Information that may be useful: H: mass number 1.008 S: mass number 32.066 O: mass number 15.999 Avogadros Number: 6.022x1023 Select one: a. 343.28 molecules b. 2.11x1024 molecules c. 2.1077x1024 molecules d. 343 molecules e. 21.077 molecules

Q: Determine the formula weight of Ca 3(PO 4) 2- O a. 135 amu O b.310 amu O c. 215 amu O d. 279 amu O…

A: The compound given is Ca3(PO4)2.

Q: 6. Vanillin contains carbon, hydrogen and oxygen. Combustion of 30.4 mg of vanillin yielded 70.4 mg…

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Q: What is the mass in grams(a,b)/ name the ionic compound (c,d)/ name the ionic compound containing a…

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Q: metermine the molecular formulas to which the following empirical formulas and molar masses pertain.…

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Q: 4. How many atoms of sulfur are in 10.18 mol of tetrathionate (S4O,2-) ion? O 2.451 x1025 atom O…

A: 1 mol of any substance contains avogadro number of atoms or ions. Avogadro's constant= 6.023× 10^ 23

Q: Moles, Molecules, and Grams Worksheet and Key F # Atoms Or # Molecules Use Avogadro's Number 1 mole…

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Q: What is the mass of 4.22 mole of Cl2   How many Cl2 molecules are in 4.22 mole of Cl2

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Q: How many molecules are contained in each compound?a. 1.35 mol of carbon disulfide (C S 2 )b. 0.254…

A: Given data   Mole of compound part(a) 1.35  part(b) 0.254 part(c) 1.25 part(d) 150…

Q: a. 0.25 mol of potassium sulfate b. 1.2 mol of glucose (C6H1206)

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Q: A sample is found to contain 0.650 mole of a chemical substance. a. How many atoms are present if…

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Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

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Q: 4. Determine the molecular formula of the compound with an empirical formula of CH and a formula…

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Q: Which one of the following molecular formulas is also an empirical formula?

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Q: What is the molar mass of the following compounds?     N2H4…

A: Molar mass of compounds depand molar mass of atom

Q: The empirical formula and molar mass of several compounds are listed. Find the molecular formula of…

A: Molecular formula can be calculculated by using below formula : Molar massg/molEmpirical formula…

Q: For Practice 3.16: Determine the mass of oxygen in a 7.2 g sample of Al2(SO4)3. What is the molar…

A: Mass of sample of Al2(SO4)3 =7.2 gramWe need to calculate the mass of oxygen in 7.2 gram Al2(SO4)3…

Q: 32. How many moles are there in 8.5 x 1025 molecules of CO,? 1.4 X 102 mol 7.1 X 10-2 mol 5.1 X 1049…

A: Please find your solution below : Avogadro's number is a factor that determines the number of units…

Q: a. How many molecules of carbon dioxide are present in 4.99 moles of this compound? molecules 22 b.…

A: 1 mol = 6.022 x 1023 moleculesThus,1 molecule =  mol

Q: A sample of lead (IV) chloride, PbCl4, weighs 2.687 g. How many moles are in this sample?

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: Convert 6.00 moles of calcium to atoms. O 8.50x1024 atoms O 1.56x1023 atoms O 3.61x1024 atoms…

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Q: Part 3: Mass to moles. Convert mass to moles then moles to number of atoms. Use the periodic table…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: how many atoms of nitrogen are in 1.34 moles of nitrogen  2. how many of copper 2 are in 2.62 moles…

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

Q: 13. Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and…

A: When two or more atoms combine with each other, they will form molecule and those molecules has…

Q: 20. How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F=19.00 g/mole 1.01 g 0.992…

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Q: 4. How many atoms of oxygen are in 10.18 mol of tetrathionate (S40,2) ion? O 3.677 x10 atoms O 6.128…

A: This question is very simple example of mole concept. First thing to calculate the number of oxygen…

Q: How many hydrogen atoms are in a 1.0 g sample of CH3COOH? The molar mass of CH3COOH is 60.06…

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Q: How many molecules are in sample? 19.3 g C8H10

A: Evergy compound/substance carries a specified relation between its moles and its molecules. This…

Q: 8. A substance has the following composition by mass: 35.51 percent C, 4.77 percent H, 37.85 percent…

A: The molecular formula of any substance shows the no of different atoms present in that substance.…

Q: 3. Calculate the percent by mass of the second element in the properly written formula. Example, for…

A: We need to find the percentage by mass of the second element in the properly written formula of the…

Q: What is the mass(in g) of 0.935 mol of acetone, CH3COCH3? A. 57.1 B. 0.0161 g C. 54.3 g D. 62.1…

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Q: write the correct answer

A: Compound: Compound are substance which are formed by chemical reactions between elements in fix…

Q: A particular oral contraceptive contains 0.0391 mg ethynyl estradiol in each pill. The formula of…

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Q: Which one of the following samples is expected to have the largest number of ions? a. 0.150 mol…

A: Ionic compounds dissociate into their constituent ions while Covalent compounds will not dissociate…

Q: AMT 3. NaHSO4 (Sodium hydrogen sulfate) Element %Na= %H= %S = %O =

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

Q: The empirical formula and molar mass of several compounds listed. Find the molecular formula of each…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: Determine whether or not each chemical formula is an empirical formula or not? Caco3? Ba3(PO4)2?…

A: Chemical formula: In the chemical formula we write the atoms of each element present in the compound…

Q: C. Calculate the number of atoms or molecules in each of the following samples. 19) 0.357 moles of…

A: Note: Since first three parts are already solved in the image, so I am solving 22,23, and 24.22) The…

Q: 7. Find the molar mass of: (NH)2CO, 1 Hydrogen 1.008 6. 8 C N Carbon 12.011 Nitrogen 14.007 Охудen…

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Q: 4. Calculate how many grams of Sb2O3 and LİAIH4 would produce 54.8 g of SbH3. + 3 A2O3 4 Sb2O3 + 6…

A: Given, Mass of SbH3 produced = 54.8g. The reaction of Sb2O3 and LiAlH4 can be given as follows:

Q: Consider the following made-up compound: (JZ)3D8 Determine the percent composition of JZ in compound…

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Q: How many molecules are in sample? 119.78 g C4H10

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Q: How many molecules are in 98.70 grams of Ba (SO4)?   A. 2.5 x 1023 molecules Ba (SO4)   B. 0.6 x…

A: Molar mass of BaSO4 = 233.38 g/mol  Mole = given mass/molar mass

Q: 1. A compound is found to contain 63.52 % iron and 36.48% sulfur. Find its empirical formula. 2. A…

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Q: Calculate the mass percent composition of nitrogen in each following nitrogen compounds B. BN C. NO2…

A: The mass percent of N = (Total Molar Mass of N in the compound / Molar Mass of compound) * 100%

Q: Calculate the number of molecules in 8.21 moles of sulfuric acid (H2SO4). a 4.94 x 1024 molecules b.…

A: Moles of sulfuric acid=8.21 moles 1 mole= 6.023×10^23 molecules

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.