Complete the table below for calculating the molecular mass of the compound water. Formula:  Atom Atomic mass   # Atoms   Mass in compound H  u/atom ×  atoms  =  u O  u/atom ×  atoms  =   u Molecular mass =  u

Q: calculate the masss of carbon in a 1-carat diamond that contains 7.56 x 10^22 atoms of carbon

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Q: Lithium forms compounds which are used in dry cells and storage batteries and in high-temperature…

A: The variants of any element containing dissimilar neutrons number but similar protons number (atomic…

Q: Symbol mass moles Number of atoms Fe 354 g potassium 302 g silver 2.16 x 1024

A: Number of moles = mass ÷ molar mass Number of atoms in 1 mol = 6.022 x 1023

Q: Calculate the mass (in g) of each sample.  5.73x10^20 SO3 molecules

A: Given:Number of molecules = 5.73x1020 molecules.Molar mass of SO3 = 80 g/mol.

Q: You are working in the laboratory preparing sodium chloride. Consider the following results for…

A: The results has to be explained on basis of law of conservation of mass and definite composition.

Q: Determine the mass in grams of 6.07 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

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Q: The mass % of water in ZnSO4. xH₂O is 43.84%. The name of the hydrate is Zinc sulfate penta hydrate…

A: From the percentage of water, number of water molecules in the formula unit of the hydrate can be…

Q: Calculate the mass, in kg, of sample. 8.15x10^27 nickel atoms

A: The mass of sample. 8.15x10^27 nickel atoms is to be calculated

Q: Determine the number of atoms in 41.0 grams of vanadium, V. (The mass of one mole of vanadium is…

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Q: Write the correct formula to distinguish between calcium sulphide and calcium hydrogen sulphide?…

A: Molecular formula of calcium sulphide is CaS.Molecular mass of CaS = molar mass of Ca + molar mass…

Q: Zinc Oxide decomposes into zinc and oxygen. If 52.1 g of zinc oxide decomposes to form 41.8 g of…

A: Given,52.1 g of zinc oxide, 41.8 g of zinc.The balanced chemical reaction of decomposition of zinc…

Q: A compound has a molar mass of 155.5 g/mol. The empirical formula of the compound is C₂H₇. How many…

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Q: Penicillin, the first of a now large number of antibiotics, was discovered accidentally by the…

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Q: cetic acid (HC2H3O2HC2H3O2) is the active ingredient in vinegar. Calculate the mass percent…

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Q: 6.90 x 1024 formula units of sodium nitrite, NaNO₂ Express your answer with the appropriate units.…

A: Multiple  questions

Q: a)Using the data provided, determine the mass percent of water and the mass percent of anhydrous…

A: Given, mass of hydrated copper (II) sulfate: 131.4g mass of anhydrous copper (II) sulfate: 130.26g…

Q: If an atomic mass unit equals 1.66 × 10−24 g, what is the mass in grams of 5.00 × 1022 formula units…

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Q: Calculate the mass, in kg, of sample.  7.55x10^26 cadmium atoms

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Q: Define and provide an example for each of the following: atomic element, molecular element, ionic…

A: Atomic element: An  atomic element is defined as an element which exists in nature with one atom as…

Q: What is the formula of the compound in which the atom combining ratios are: Carbon: Hydrogen:…

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Q: A balanced chemical equation contains the term "2Ba(OH)2-8H₂O", which is used as a lubricating…

A: Given: The coefficient of  is 2.

Q: Radioactive sodium pertechnetate is used as a brain-scanning agent in medicine. Quantitative…

A: Given : Mass of compound = 0.896 g Mass of Na = 0.111g Mass of Tc = 0.477 g

Q: Vitamin C is a covalent compound with the molecular formula C6H8O6. The recommended daily dietary…

A: Number of moles of a substance is equal to the mass of substance divided by molar mass. Write the…

Q: The mass of a copper coin is 7.83 g. Suppose it were pure copper. a) How many moles of Cu atoms…

A: a) Given that : Mass of Copper coin = 7.83 g Molar mass of copper = 63.55 g/mol Moles of copper atom…

Q: What mass of Na2CO3 would contain 2.50 x 1025 sodium (Na) atoms? Express your answer in units of…

A:

Q: 1) What is the mass in grams of 6.86x10^23 atoms of manganese? 2)How many manganese atoms are there…

A: 1)  Number of moles of manganese = number of atoms (given) / number of atoms in 1 mole number of…

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: How many grams of NaOH are present in 5.60 x 1024 formula units? (Just write the final answer with a…

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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: 1 Empirical Formula 2 Mass Percent 3 Percent Composition 4 Anhydrous Compound A compound with a…

A: The empirical formula of a compound does not give the definite proportions of the element in a…

Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and…

A: Formula to calculate % composition:Mass % of element = mass of the element on the given formula /…

Q: The elements X and Y form a compound that is 40% X and 60% Y by mass. The atomic mass of X is twice…

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Q: Calculate the mass, in kg, of sample. 1.22x10^27 manganese atoms

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Q: 2. Determine mass (in g) of CO that contains 5.50 x 108 atoms

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Q: How many carbon atoms are there in a 1.0-carat diamond? Diamonds are a form of pure carbon. ( 1…

A: Given:1 carat=0.20gWe know,Atomic mass of C=12.0107g/molalso, 1 mol of C=6.022×1023 atoms of C

Q: You take three compounds, each consisting of two elements (X, Y, and/or Z) and decompose them to…

A: We are given with masses of elements and we have to find out chemical formula.It is a simple…

Q: Calculate the final volume and temperature and the work done

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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.