Cupric sulfate is commonly sold as the pentahydrate, CuSO4 ?5H2O, which has 5 moles of H2O for each mole of CuSO4 in the solid crystal. The formula mass of CuSO4 ?5H2O (5 CuSO9H10) is 249.69 g/mol. How many grams of CuSO4 ?5H2O should be dissolved in a 250-mL volumetric flask to make a solution containing 8.00 mM Cu21?

Q: Boron forms a series of compounds with hydrogen, all with the general formula B₂ Hy. X BH₁(s) +…

A: Given: BxHys+excess O2g→x2B2O3s+y2H2Og Weight of BxHy is 0.207 g Weight of B2O3 is 0.590 g Molecular…

Q: copper sulphate (CuSo4) with a concentration of 0.00095 mol l-1. If they wanted to prepare one litre…

A: Here, Molecular weight of CuSO4= RAM(Cu)+ RAM(S)+ 4×RAM(O).…

Q: A 0.500–g sample of stannous fluoride gives a 0.590–g precipitate of stannous phosphate.  Calculate…

A: No. Of moles = Given Mass / Molar mass Theoretical yield = Product formed theoretically by…

Q: What is the mass in grams of magnesium chloride that can be produced from 8.05 moles of chlorine gas…

A: The given reaction is,                        Mg(s) + Cl₂(g) → MgCI₂(s) Clearly, from the above…

Q: Determine the mass of precipitate, in grams, that forms when 66.9 mL of 0.0459 M Ba(ClO4)2 reacts…

A:

Q: What is the mass in grams of H2 that can be formed from 54.6 G of NH3 in the following reaction? 2…

A: From the stoichiometry, we can easily calculate , the problem.

Q: Sodium metal reacts with water in the following single-displacement reaction: 2Na(s) + 2H2O(l) →…

A: Here we have to determine the limiting reactant and mass of H2 gas produced when 2.0 g of Na is…

Q: how many grams of CO2 are present in 8x10^12 molecules of CO2?

A:

Q: What mass of HCI, in grams, is required to react with 0.840 g of Al(OH)3? Al(OH)₂ (s) + 3HCl(aq) →…

A:

Q: An Alka-Seltzer tablet contains exactly 75.0 mg of citric acid, H3 C6H5O7, plus some sodium…

A:

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: How many moles of ammonia would be required to react exactly with 0.424 moles of copper(II) oxide in…

A:

Q: 1-Methylanthracene is a hydrocarbon. If 0.0887 g of the compound is burned in oxygen, 0.305 g of CO2…

A: mass of the hydrocarbon = 0.0887 g mass of CO2 produced = 0.305 g mass of H2O produced = 0.0499 g To…

Q: Calculate the theoretical yield (g) and % yield of Al(OH)3.

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant…

Q: (IIIwith carbon to give iron and carbon monde Fe 2 O 2 (s)+3C(s) 2Fe(s)+3CO(g) How many grams of…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Macmillan Leaming Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric…

A:

Q: For the chemical reaction,   2NaOH+H2SO4⟶Na2SO4+2H2O2NaOH+H2SO4⟶Na2SO4+2H2O   what mass of…

A: The reaction is :  2 NaOH + H2SO4 ==> Na2SO4 + 2 H2O  Moles of water given = 4.87 mol  Molar mass…

Q: What is the process to determine the theoretical yield of solid produced when 25.00 mL of 1.00 M…

A: The balanced reaction taking place is given as, => Given : Concentration of silver nitrate i.e…

Q: Al4C3 (s)    +  12 H2O (l)     →   4 Al(OH)3 (s)   +  3 CH4 (g) In this reaction, 0.3455 mol of…

A:

Q: chemist adds  0.95L  of a  0.0010/molL  copper(II) fluoride  CuF2  solution to a reaction flask.…

A:

Q: Suppose a 250. mL flask is filled with 0.40 mol of CO, 1.6 mol of CO₂ and 0.20 mol of H₂. This…

A: The ICE table gives the initial concentration of compounds, change in concentration of compounds,…

Q: How many atoms of oxygen are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A: 1 mol 6.022×1023  atoms First we are going to calculate the moles of the compound then according to…

Q: A sample of sodium carbonate, Na2CO3, weighs 40.0 g. Calculate the following quantities (a) ? mol…

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

Q: Mercury can be obtained by reacting mercury(II) sulfide (show below) with calcium öxide. It you…

A: The ratio of mass to the molar mass of the substance is known as the number of moles. It is denoted…

Q: How many moles of ammonia would be required to react exactly with 0.764 moles of copper(II) oxide in…

A: The balanced reaction can be given as

Q: What is the molarity of the nitrate ion, NO3–, of a 43.1 mL solution containing 11.49 g of Fe(NO3)3?

A: Molarity of NO3- = 3.3M

Q: the molarity of the sugar sucrose found in a 12oz (355mL) can of coca-cola is 0.32 M. how many grams…

A:

Q: How many moles of lithium hydroxide would be required to produce 35.0 g of Li₂CO₃ in the following…

A: Given: mass of Li₂CO₃ = 35.0 g molar mass of Li₂CO₃ = 70.0 g/mol

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.