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

Q: What mass (in g) of iron (Fe, molar mass = 55.85 g∙mol–1) is needed to experimentally produce 50.0 g…

A: First we need a balanced reaction equation: 4 Fe + 3 O2 →2 Fe2O3 Next, since 50.0 grams of iron(III)…

Q: Calculate the mass in grams of a sample of NO2 that contains 1.000 x 10^25 molecules.

A:

Q: You carefully weigh out 17.00 g g of CaCO 3  CaCO3 powder and add it to 68.85 g g of HCl HCl…

A: CaCO3 (s) + 2 HCL (aq) → H2O (l)+ CO2(g) + CsCl2 (aq)Thus from 1 mol of CaCO3 (s) , 1 mol of CO2(g)…

Q: The calcium content in a 0.4367-g sample of phosphate rock was determined by first dissolving the…

A: Here we have to determine mass percentage of calcium present in 0.4367 gram phosphate rock  if all…

Q: 10.8 mL of 0.25 M HCl(aq) reacts with an excess of Mg(OH)2(aq), what mass of magnesium chloride…

A:

Q: Turquoise, CuAl 6 ( P O 4 ) 4 ( OH) 8·5 H 2 O(s), is one of the most valuable non-transparent…

A: Calculate molar mass of both hydrated and anhydrous form of the mineral and then calculate the mass…

Q: If 23.3 grams of an aqueous solution of manganese(II) sulfate, MnSO4, contains 5.96 grams of…

A: Percentage by mass – ratio of Mass of solute to the Mass of solution and multiplied by 100 is…

Q: What is the molarity of a barium chloride solution prepared by dissolving 9.9 grams of BaCl2•2(H2O)…

A: Molarity = (Mass/molar mass)(1000/V(ml)).Mass = 9.9g.Molar mass = 244.26g/mol.Volume = 151.0ml.

Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: To calculate the mass of Ti from given mass of ilmenite-sand mixture, we would proceed as :  1.)…

Q: To determine the amount of platinum in an alloy, a 8.565 g8.565 g sample of an alloy containing…

A:

Q: Determine the mass percent of anhydrous sodiumcarbonate (N a 2 C O 3 ) and water in sodium…

A: Given   Anhydrous sodium carbonate : Na2CO3  Sodium carbonate decahydrate: Na2CO3 ·10 H2O…

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: Ilmenite can be separated from sand with magnets

Q: percentage by mass

A:

Q: If 45.4 mL of 0.25 M HCl(aq) reacts with an excess of Mg(OH)2(aq), what mass of magnesium chloride…

A:

Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂ (g) → 4 PCl₃ (g)

Q: Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this…

A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A: To find mass of product formed.

Q: If 1.800 g of aluminum reacted with an excess aqueous HCl to produce 8.894 g of aluminum chloride.…

A: Answer:- firstly a balanced chemical equation is written then using the mass , mass of Al and cl is…

Q: Calculate the mass (in grams) of 8.336 x 10^16 molecules of Ca5(PO4)3(OH) (Hydroxyapatite)

A: We have been given 8.336 x 1016 molecules of hydroxyapatite.and we have been asked to calculate the…

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: A powder contains FeSO4·7H2O (molar mass = 278.01 g/mol) among other components. A 3.200-g sample of…

A: Answer:The question is based on the concept of gravimetric analysis and Stoichiometric Calculations.…

Q: Bacterial digestion is an economical method of sewage treatment. The reaction is an intermediate…

A:

Q: The goal of the first part of the experiment is to determine the value of n in the formula for…

A: Answer:This question is based on stoichiometric calculation where we have to establish the relation…

Q: Quartz, SiO2, contains 46.7% silicon. What mass of silicon is present in 370 g of quartz?

A: To solve this problem we have to calculate the mass of silicon present in quartz .

Q: A sample of calcium metal of mass 2.0g reacts with excess oxygen. Ca + O2 = CaO You get 2.06g of…

A:

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: The explanation is given below-

Q: If the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg…

A: Given: Mass of CaO = 22.3 kg Mass of P4O10 = 10.5 kg  To find: mass of calcium phosphate in kg…

Q: Determine the theoretical yield of alum (KAl(SO4)2·12 H2O), in units of g, if a student starts with…

A: Interpretation: The theoretical yield of alum in grams is to be determined. Given: Theoretical yield…

Q: Imagine that you are given 0.2500 g of a sample of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O).…

A: The mass of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O) sample is = 0.2500 g The mass of…

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: he doesn't have time to repeat the steps of heating, cooling crucibles, and remeasuring the mass.…

A: Amount of water in a hydrate is calculated by using the formula  Amount of water in a hydrated salt…

Q: a) What mass of strontium nitrate (Sr(NO3)2) would be required to prepare 2.000 L of a 0.0180 M…

A:

Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

A:

Q: You carefully weigh out 11.00 g of CaCO3 powder and add it to 44.55 g of HCl solution. You notice…

A: CaCO3(s)+2HCl(aq)→H2O(l)+CO2(g)+CaCl2(aq) according to mass conservation, mass of reactant=mass of…

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

A:

Q: Gaseous water (H₂O) and solid calcium oxide (CaO) are formed by the decomposition of solid calcium…

A: A chemical reaction in which a single reactant breaks down into two or more products is called a…

Q: A sample of soda-lime glass for tableware is analyzed and found to contain the following percentages…

A: Given- % by mass of oxides SiO2 = 72.4% Na2O =18.1% CaO = 8.1% Al2O3 =1.0% MgO = 0.2% BaO = 0.2%…

Q: Mg(OH)2(s)+2HNO3(aq)→   the balanced chemical formula?

A: Above reaction is double displacement reaction i.e neutralization reaction.

Q: The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of…

A:

Q: A chemical reaction calls for 0.125 moles of sodium acetate, NaC2H3O2. What mass, in grams, of…

A: The relationship between number of moles (n) and mass of a substance is given by: n=MassMolar…

Q: You very carefully heat the compound for an extended period of time to drive off water, after which…

A: (i) Yes, it is correct formula of hydrated salt (ii) Mass of water = 0.2500 - 0.1598   = 0.0902 g…

Q: Use the concept of molarity to calculate the molarity of a solution prepared by dissolving 25.00 g…

A:

Q: A chemist needs 1.28 g of sodium hypochlorite, NaOCl(s), for an experiment, but she only has sodium…

A: The mass of a compound can be determined by the molar mass of compound and the respective molar mass…

Q: 1.What mass of Cu(IO3)2 can be formed from 0.650 g of CuSO4 · 5H2O? 2. What mass of KIO3 is needed…

A:

Q: A 10.05 g10.05 g sample of Mo2O3(s)Mo2O3(s) is converted completely to another molybdenum oxide by…

A: Atomic weight of molybdenum = 95.94.Atomic weight of oxygen = 16.00Percentage of oxygen added…

Q: What is the mass in grams of CuO that would be required to produce 38.00 moles of nitrogen gas in…

A: Given , Chemical Reaction : 2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g) Moles of N2 = 38.0…

Q: What is the mass in grams of CuO that would be required to produce 73.00 moles of nitrogen

A: We have to find mass in grams of CuO that would be required to produce 73.00 moles of nitrogen gas

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.