1. A 15.67 g sample of a hydrate of magnesium carbonate, MgCOs, was heated, without decomposing the carbonate, to drive off the water. The mass after heating sufficiently was reduced to 7.58 g. a) Find the percent of water. b) Find the moles of water. c) Find the moles of anhydrous salt. d) Calculate X the number of water molecules in a hydrate sample (X H:O) and e) what is the formula of the hydrate?

Q: how many moles of solute are present in the following solutions? 130 mL of 0.21 M NaHC03?   627.0 mL…

A: Moles of solute = molarity X volume of solution in L 1) volume of solution in L = 130 / 1000 = 0.13…

Q: special sample of household vinegar contained 7.3% acidity. Determine the number of moles of acetic…

A: %mass of Aceticacid = 7.3 %  Mass of sample = 242 g Mass of Acetic acid= 242 × 7.3/100    = 17.7 g

Q: RITROE 19 K 39.30 132 20 Ca 21 Sc Ti Molarity (M M₁ = M₂V₂ Convert the mass 1570.3 mg of a chunk of…

A:

Q: How many grams of NaOH would you need to make 7,252 mL of a 230 mM N2OH solution (m.w. = 40.00…

A: Molar concentrations play significant role in depicting dissolved solute's mass in the given…

Q: + Water "softeners" remove metal ions such as Ca²* and Fe³* by replacing them with enough Na ions to…

A: Given data,Volume of solution=7.96×102LMolarity of Ca2+=0.0357 MMolarity of Fe3+=0.00151 M

Q: 32. 6.00 g of H₂ is reacted with 10.0 g of O₂ to produce water (H₂O). How many grams of water are…

A: The mass of H2 is 6.00 g.The mass of O2 is 10.0 g.To find the mass of H2O produced.

Q: What volume in L of a 0.724 M NaI solution contains 0.405 mol of NaI ? If you have 155 mL solution…

A: a) concentration of NaI solution = 0.724 M = 0.724 mol/Lmoles of NaI = 0.405 molVolume of NaI…

Q: 7. What volume of a 0.112 M solution of sodium hydroxide (NaOH) is needed to obtain 0.51 mol of…

A: Concentration is defined as number of moles of solute present in 1000 mL of solution or 1L of…

Q: If you mix 2.08 mL of 0.152 M NaCl solution with 3.15 mL of water, what will be the molarity of the…

A:

Q: Which type of chemical reactions results in the production of a salt and water?

A: In a neutralization reaction, the production of salt and water occurs when acid and base react with…

Q: Write the balanced reaction for the reaction that occurs. b) How many moles of calcium carbonate…

A: This question is based on stoichiometry. This amount of reactant reacted and product produced…

Q: 1. Mol NaOH = L HCl * Molarity of HCl * Stoichiometry (mol NaOH / mol HCl) Molarity of HCL= 0.116…

A: 1.

Q: You weigh a sample of 2.0moles of a substance to be 7.1 kg. Why is an answer of 3.55kg/mol…

A:

Q: A 500 mg sample contains FeCl3 & MgCl2. Ammonia was added to the sample to precipitate the…

A: The chemical reactionFeCl 3 + 3 NH 3 + 3H2O -----> Fe(OH)3(s) + 4  ................(1)MgCl 2 + 2…

Q: For this reaction, 2 NH3 + CO2 --> H2NCONH2 + H2O how much water would be produced when 5.0 g of NH3…

A: Given data,Mass of NH3=5.0gMass of CO2=5.0g

Q: If 4.84 L of a 0.925 M H3PO4 solution is diluted to a volume of 11.80 L, what is the concentration…

A: Dilution equation:                                                  M1V1 = M2V2 where, M1 = Initial…

Q: 5)_NH; +_0:→__NO + _H20 _0:>. 0.3359 mol of ammonia will make how many grams of water? H:0

A: Balanced chemical equation is: 4NH3+5O2→4NO+6H2O This means that, 4 moles of ammonia gives 6 moles…

Q: 5)_NH; + 0.3359 mol of oxygen will make how many grams of water? NÓ +

A: Moles = Mass / Molar mass Mass = Moles X molar mass.

Q: Units for molarity are 1. grams/liter 2. grams/mL 3. moles % 4. moles/L 01 O 2 Оз O 4

A: Molarity helps us to measure the concentration of the solution. It is defines as the number of moles…

Q: If 0.25 L of a 6.1 M HNO₃ solution is diluted to 2.0 L, what is the molarity of the new solution?

A: M1 × V1 = M2 × V2 Where, M1 = initial molarity, V1 = Intial volume M2 = final molarity and V2 =…

Q: 39. ** Questions 37 through 39 use the reaction: 2 Fe (s) + 6 HCI (aq) → 2 FeCl3 (aq) + 3 H2 (g)…

A:

Q: A 0.2356 g sample containing only NaCl and BaCl₂ yielded 0.4637 g of dried AgCl. Calculate the…

A: Given data:The amount of sample containing NaCl+ BaCl2 =  0.2356 gThe amount of AgCl (obtained)=…

Q: . Consider the following reaction: Al₂(SO4), + Na,PO4 → Na₂SO4 + AlPO4 If 2 moles of aluminum…

A:

Q: If 0.25 L of a 6.8 M HNO₃ solution is diluted to 2.0 L, what is the molarity of the new solution?

A: Given, M1=6.8 MM2=?V1=0.25 LV2=2 L

Q: S    +   6 HNO3  -->   H2SO4   +  6 NO2   +   2 H2O In the above equation how many moles of water…

A: Given, S + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2O moles of HNO3 consumed = 78 moles moles of water (H2O)…

Q: If 4.17 L of a 0.680 M H3PO4 solution is diluted to a volume of 13.40 L, what is the concentration…

A: Given, the concentration of H3PO4 =0.680 Mvolume of  H3PO4 solution =4.17 Labove solution of  H3PO4…

Q: If 0.0458 mol CaCl20.0458 mol CaCl2 is dissolved in water to make a 0.490 M0.490 M solution, what is…

A:

Q: reacts with 0.110 M NaOH.  Determine the concentration (molarity) of H2SO4 if 49.22 mL of NaOH is…

A:

Q: What volume of 2.50 M NaOH (40.00 g/mol) contains 0.100 mole of NaOH?

A: Volume of NaOH:

Q: How many grams of sodium ions are present in 5.000 kg of an aqueous sodium sulfate solution whose…

A: Given: Mass of solution = 5.000 Kg = 5000 g…

Q: If 0.250 L of a 7.70 M HNO₃ solution is diluted to 2.00 L, what is the molarity of the new solution?

A: Molarity=M1=7.70M volume=V1=0.250L volume=V2=2.00L molarity=M2=?

Q: 1. a. A solution is created by mixing 35.3g of C&H12O6 with 100.0mL of water. (Molar Mass of CoH12Os…

A:

Q: A solution is made by dissolving 23.8 g of copper (II) sulfate, CuSO4, in enough water to make…

A: Given : Weight of solute(copper sulphate) = 23.8 g Volume of solution = 250 ml To find: Molarity of…

Q: CHAPTER 8 - SOLUTIONS Previous Page 18 of 35 Next O If 8.50 g Ca(NO3)2 is dissolved in enough water…

A: Since molar mass of Cu(NO3)2 = 187.5 g/mol Hence moles of Cu(NO3)2 = mass of Cu(NO3)2 / molar mass =…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".