Oxygen 15.9994

Q: Calcium chloride is 36.11% calcium. How many grams of calcium are present in 2.55 x 103 g of calcium…

A: The mass percent of the calcium in calcium chloride is = 36.11 % The mass of calcium chloride is =…

Q: What is the formula for the compound sodium hypochlorite? Explain how you were able to write the…

A: Ionic compound: Ionic compound composed of cation which is positively charged (+charge) and an anion…

Q: Determine the mass in grams of 5.48 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A: Given:Mass of one mole of arsenic = 74.92 g1 mole of an element has 6.022×1023 (NA) atoms. ⇒1 mole…

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: Calculate the mass (in grams) of 4.69 x 1024 carbon atoms.

A: Given : 4.69 × 1024 carbon atoms.  We know 6.022 × 1023 atoms = mass of one mole

Q: A drop of water, H2O, has a volume of approximately 0.050 mL. Assuming that the density of water is…

A: Given volume of 1 drop = 0.05 ml density of 1 drop = 1 g/ml number of drops = 3

Q: Determine the mass in grams of 5.51 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A:

Q: What is the mass in kilograms (kg) of 4.29 X 1024 atoms of palladium?

A:

Q: The correct result (indicating the proper number of significant figures) of the following…

A: To determine the correct result with the appropriate number of significant figures, we need to…

Q: Be sure to answer all parts. Enter your answers in scientific notation. Calculate the number of…

A: The compound given is Ca3(PO4)2. Mass of Ca3(PO4)2 given = 9.75 g Molar mass of Ca3(PO4)2 = Atomic…

Q: natural rubidium has the average mass of 85.4678 AMU and is composed of isotopes Rb 85 (mass =…

A: Average atomic mass = ∑i=1XiMiWhere X = mole fraction of the isotope and M is the mass of the…

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: Determine the mass in grams of 6.03 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: The given mass of 1 mole of carbon atoms = 12.01 g So, the mass of 6.022×1023 atoms of carbon =…

Q: How many grams would 4.904 x 10^22 atoms of Lithium weigh? Show all work and report your answer to…

A: Given atoms of lithium is 4.904 × 10^22 * first we have to convert atoms of lithium into…

Q: Determine the mass of 5.0x10^23 tungsten (w) atoms

A: One mole of any substance will have 6.023× 1023 . Therefore number of moles in 5.0× 1023 atoms,…

Q: Determine the mass in grams of 4.54 × 10²¹ atoms of zinc. (The mass of one mole of zinc is 65.39 g.

A:

Q: Calculate the mass of gold(III) chloride (Au2Cl6) that contains a million (1.000 x 10^6) chlorine…

A: The atomic mass of Au (gold) is 197 g/mol while the atomic mass of Cl(chlorine) is 35.5 g/mol. Molar…

Q: How many grams of rubidium are in 3.49 x 1024 atoms of rubidium? Enter your answer in decimal form…

A: 1 mole atoms = 6.023 * 1023 atoms. molar mass of Rb = 85.4678 gmole  and mass of Rb = mole * molar…

Q: (c) An unknown atom has 20 neutrons. Its mass is 6.138 x10-23 g. (i) (ii) Determine the chemical…

A:

Q: H. .C. II Three moles of the compound in the figure above would weigh how many grams? (The atomic…

A: Given  Moles = 3

Q: Compound Z is a chemical naturally found in peppermint and other mint plants and has mild anesthetic…

A:

Q: Starting with 8.39 X 1018 grams of HCIO4, how many molecules of Cl207 can you make? 12 HC1O, + P4010…

A: In a balanced chemical reaction, stoichiometry gives the relationship between the amount 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.