Which of the following is equal to exactly 1 mole of atoms?     6.00 grams of carbon     31.93 grams of cobalt     34.00 grams of selenium     12.31 grams of magnesium     26.98 grams of aluminum

Q: sample of P4O10 with a mass of 44.9 g was treated in such a way that all of its phosphorus was…

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Q: 11. Which of the following nitrogen-oxygen masses is not consistent with the rest, according to the…

A: Law of constant proportions says that whatever may be the source of a particular compound , the…

Q: What is the mass of 2.00 × 10 ^ 19 molecules of CCl4?

A: Given the number of molecules of CCl4 are --- 2.00×1019 molecules What is the mass of this given…

Q: A 2.00 g sample of an organic compound contains 0.675 g of carbon. How much carbon would a 4.00 g…

A: ◼️ Given that:  2.00 g of organic sample has 0.675 g Carbon  Carbon in 4.00 g of same organic…

Q: Which of the following statements is not correct? A. 12.01 g of C contains 6.022 x 1023 atoms of C…

A: 1 mol of any substance contains Avogadro's number of particles (atom/ion/molecule etc.). Avogadro's…

Q: Calculate the number of atoms in each of the following masses: a. 54.0 g of aluminum ans: 1.21 1024…

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Q: How many grams of nickel are in a 3.4x10^27 nickel atoms?

A: There are 6.022×1023 atoms in one mole of a substance. Therefore,mass of 6.022×1023 atoms will be…

Q: How many moles of calcium atoms do you have if you have 4.06 x10^21 atoms of calcium.

A: Given : Number of atom of calcium = 4.06 x10^21   Avogadro's Number = 6.023 × 10^23   Finds :…

Q: Element X forms three different compounds with element Y. Information about these compounds is…

A: We have to predict the formula for the other two compounds.

Q: 30 atoms of calcium weigh:   600 g   1.806 x 1025 amu 600 amu 1.202 x 103 g 1.202 x 103 amu the…

A: Number of moles = given massmolar mass One mole of any substance contain 6.022×1023 atoms

Q: In the laboratory, a student weighs out 0.0852 g of cobalt on balance.  How many atoms of cobalt are…

A: Molar mass of an element represents the mass of one mole of the element.

Q: 1.aDo a mole of Na and a mole of NaCl contain the same number of Na atoms ? Explain your answer .…

A: Same moles of any particle will have same number of that particles .

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: A compound containing copper, sulfur, and oxygen was decomposed and the masses of these components…

Q: Determine the number of atoms of H in 36.1 grams of C6H12O6

A: We have to calculate the number of atoms in given mass of glucose.

Q: 1. How many ATOMS of nitrogen are present in 8.78 grams of dinitrogen tetrafluoride ? atoms of…

A: 1 mole = 6.022×1023 [ Avogadro's number ]  The mass of one mole of molecules is known as molar mass…

Q: Calculate the number of moles in each of the following masses: a. 64.1 g of aluminum b. 28.1 g of…

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Q: How many grams of Zn2+ are present in 3.92 grams of zinc oxide?   How many grams of zinc oxide…

A: Known: Molar mass of zinc oxide = 81.41 g/mol Molar mass of Zn2+ = 65.4 g/mol

Q: Calculate the mass in grams to 3 sig figs of 8.65x1022 atoms of aluminum

A: Number of atoms of Aluminum = 8.65 * 1022  atoms (given) Molar mass of Aluminium = 26.981539 g…

Q: Determine the number of atoms of C in 43.7 grams of C₆H₁₂O

A: Atom is composed of neutrons, protons, and electrons.

Q: An unknown compound is 92.26% carbon and 7.74% hydrogen. The unknown compound has a Molar Mass of…

A: Empirical formula is defined as simplest or most reduced whole number ratio of atoms present in a…

Q: A student is running an experiment in which 48.1 grams of MgBr2 is needed, but the only jar of…

A: Given Mass of MgBr2 needed = 48.1 g

Q: A compound has an empirical formula of C 2H 3. If a sample of the compound contains 4.36 grams of…

A: Empirical Formula :- It is the simplest ratio of number of atoms present in a compound. The ratio is…

Q: How many carbon atoms are in 2 dozen molecules of Vitamin D, C56H88O2?

A: Vitamin D ( C56H88O2)  1 molecule of Vitamin D contains 56 carbon atoms.

Q: For 2.526 g of a compound containing only copper and oxygen, CuxOy, a student found that it…

A: From the mass of compound and mass of Cu ,we can determine the mass of oxygen. Then using molar mass…

Q: How many grams are in 1.2 × 1024 atoms of carbon

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

Q: Phosphorus has the molecular formula P4, and sulfur has the molecular formula S8. How many grams of…

A: Given Number of molecules of P4 = number of molecules of S8 moles of P4 = moles of S8   mass of…

Q: The compound, X,03, contains element .5 X and oxygen atom combined in a ratio of 2.17 grams of X to…

A: The mass ratio of atom X to oxygen in X2O3 is = 2.17: 1 In the second compound, the mass ratio of…

Q: A sample of a compound was found to contain 54 grams of aluminum, 96 grams of oxygen, and 6 grams of…

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Q: How many moles of iron atoms do you have if you have 5.60 × 10²³ atoms of iron. (The mass of one…

A: We know that 1 mole=6.023 x 10^23 atoms/molecules/ions Given, Number of atoms of iron=5.60 x 10^23

Q: How many moles of calcium atoms do you have if you have 5.60 × 10²¹ atoms of calcium. (The mass of…

A: The question is based on mole concept. We have to calculate moles of calcium.

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: 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: How many grams of iron are combined with 62.2 grams of oxygen to make the iron (II) oxide compound?

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Q: .The compound, X₂O₃, contains element X and oxygen atom combined in a ratio of 2.12 grams of X to…

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Q: How many moles of iron atoms do you have if you have 2.50 × 10²³ atoms of iron. (The mass of one…

A: The number of atoms present in one mole of a substance is equal to Avogadro number.

Q: - Which of the following nitrogen-oxygen masses is not consistent with the rest, according to the…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: How many moles of calcium atoms do you have if you have 5.65 × 10²¹ atoms of calcium. (The mass of…

A: Mol defination:  Mole in terms of particles:  1 mol = Avogadro no.of particles            = 6.02 ×…

Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: What element has 3.63*10^23 atoms in 6.52 g of material

A: Given, No of atoms in the element = 3.63×1023mass of element = 6.52 g

Q: The mole is a unit of measurement, which chemists routinely utilize. Which of the following molar…

A: A mole is defined as the amount of substance tht contains the same number of atoms, molecules, ions…

Q: Using the following equation: Fe:O:(s) + 3H:(g) → 2Fe(s) + 3H:O(1) How many grams of iron,Fe, can be…

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Q: How many grams of Al3+ are present in 4.12 grams of aluminum iodide?  How many grams of aluminum…

A: To find the grams, number of moles should be calculated.  Moles = Given mass/ molar mass

Q: Determine the mass in grams of 5.30 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: 1 mole of a substance equal to  6.022×1023 atoms which is Avogadro’s number. Thus, the gram value of…

Q: 10 gram of which substance contain the greatest number of Hydrogen Atoms? A. 10 grams of CH4 B. 10…

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Q: 19. A certain sample of dichlorine heptoxide consists of 4200 oxygen atoms combined with chlorine…

A: According to the given data the sample is dichlorine heptoxide. The sample consists of a total of…

Q: 4. Which of the following is not a correct description of 16.0 grams of methane, CH₂? A. It is one…

A: One mole compound has a mass equal to the molar mass of the compound. 1 mole of substance contain…

Q: 5. Compound X is composed of 52.2% carbon, 13.0% hydrogen, and the rest oxygen, by mass. The…

A: Compound X contain C= 52.2%                                    H= 13%…

Q: What is the mass of 0.560 moles of chlorine gas?   A. 19.9   B. 63.3   C. 127   D. 39.7…

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Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28g of carbon and…

A: Percent composition of the compound is described as the percent of mass of each component of the…

Q: Calculate the mass in grams of 8.35 × 1022 molecules of CBr4

A: We have given that, No.of molecules of CBr4 = 8.35 ×1022 we know that from avogardo's law 1 mole of…

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.