What number of Fe atoms and what amount (moles) of Fe atoms are in 500.0 g of iron?

Q: The empirical formula of a compound is C2H5O. Its molecular mass is 135.112. What is its molecular…

A: Molecular mass = n × Empirical formula mass

Q: Caffeine, a stimulant of the central nervous system, has the molecular formula C8H₁0N4O2. The molar…

A: Mass of 1 mole = molar mass 1 mole AB contain 1 mole A and 1 mole B

Q: Calculate the number of O atoms in 0.0136 g of CaSO4 2H₂O. x 10 O atoms (Enter your answer in…

A: Answer: Given data: Mass of CaSO4.2H2O m=0.0136g

Q: 5. A 2.000 g sample of CoCl2·xH2O is dried in an oven. When the anhydrous salt is removed from the…

A: By calculating moles of CoCl2 and H2O we can find value of x.

Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 669.9 grams?

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

Q: Consider the reaction: P4(s) + 6Cl2(g) → 4PCI3(1) Given an initial mass of 11.64 g PA, an excess of…

A: Given, Mass of P4 = 11.64g. The balanced reaction of formation of PCl3 can be given as follows:

Q: Sodium hydroxide, NaOHNaOH, is a strong base that is used in industrial synthesis and processes such…

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Q: Anhydrous CuSO4 can be used to remove water (an impurity) from gasoline. When the CuSO4 absorbs the…

A: Reaction corresponding to absorption of water by copper sulfate is: CuSO4+5H2O→CuSO4.5H2O Hence, 1…

Q: Butanol (C4H9OH) is commonly used as a lighter fluid.  Consider the combustion of butanol in the…

A: For the combustion of butanol, a balanced chemical reaction can be depicted as;…

Q: How many moles are present in 3.44 g CoCl2 ꞏ 6H2O?

A: The number of moles is calculated by dividing the given mass by molecular mass of that compound. It…

Q: A mixture of CuSO4 · 5H2O and MgSO4 · 7H2O is heated until all the water is lost. If 5.047 g of the…

A: A mixture of CuSO4·5H2O & MgSO4·7H2O is heated until all the water is lost. 5.047 g of the…

Q: Consider the following balanced chemical reaction: Fe2O3 (s) + 2 Al (s) → Al2O3 (s) + 2 Fe (s)…

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Q: Phosphorus trichloride, PCl3, is produced from the reaction of white phosphorus, P4, and chlorine:…

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Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

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Q: Hydrated vanadium (II) sulfate, VSO4·xH2O, is 46.19% water by mass. Determine the empirical formula…

A: Given data contains, Atomic mass of Vanadium is 50.94 amu. Atomic mass of sulfur is 32 amu. Atomic…

Q: Calculate the molar mass of lead(II) nitrate, Pb(NO3)2(s)

A: The molar mass is the sum of masses of all the atoms present in compound.

Q: An engineering technician carries out a process to produce quicklime (calcium oxide, CaO) from…

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Q: The following reaction can be used to convert carbon dioxide to oxygen gas. 4 KO₂ (s) + 2 CO₂(g) → 2…

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Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced…

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Q: The formula for alum is KAl(SO4)2  x 12 H2O. All of the atoms in this formula contribute to the…

A: Formula for alum  KAl(SO4)2 . 12 H2O formula mass of alum = 474.39 gmol molar mass of aluminium…

Q: A certain compound contains carbon, hydrogen and chlorine only. Complete combustion of 0.425 g of…

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Q: Calculate the mass (in kg) of 2.67x10^25 atoms of nickel (Ni). Molar mass of Ni is 58.71g/mol.

A: