In the preparation of Boric acid (MW = 61.81 g/mol), 140 grams of borax (MW = 381.2 g/mol) dissolved in 300 mL water was made to react with 70 mL of Hydrochloric acid (MW = 36.46 g/mol). What is the amount of Boric acid obtained from borax? Boric Acid: Na2B4O7.10H2O + 2 HCl → 4 H3BO3 + 2 NaCl + 5 H2O

Q: Consider the following reaction to make alum: 2 Al(s) + 2 KOH(aq) + 22 H₂O(l) + 4 H₂SO4 (aq) → 3…

A:

Q: A chemist carries out this reaction, beginning with 2.10 grams of NaBr and 3.25 grams of Pb(NO3)2:…

A:

Q: hydroxide with phosphoric acid where 10.0 mL of 0.150 M magnesium hydroxide is mixed 15.0 mL of…

A: First calculate moles of each reactant by multiply MOLARITY and volume  then find out limiting…

Q: Zinc metal reacts with hydrochloric acid by the following reaction: Zn(s) + 2HCI(aq)→ ZnCl2(aq) +…

A: Balanced reaction: Zn + 2HCl ....> ZnCl2 + H2 1 mol Zn is reacted with 2 moles of HCl Moles of Zn…

Q: Potassium metal reacts with water according to the following balanced equation. 2 K(s) + 2 H₂O(1) →→…

A: The objective of the question is to understand the stoichiometry of the given chemical reaction and…

Q: how many grams of water will be formed

A: Given :- mass of Fe2O3 = 27.2 g  To calculate :- mass of H2O (in g)

Q: Many fertilizers contain ammonium phosphate as a source of phosphorus and nitrogen. A 8.22 g sample…

A:

Q: Phosphoric acid (H3PO4) can be prepared from phosphorous triiodide (PI3) according to the reaction:…

A: Given reaction is : PI3 (s) + H2O(l) → H3PO4 (aq) + HI(g)  Mass of PI3 (s) = 15 g  Volume of H2O =…

Q: A sample contained a mixture of MgCO 3 and BaCO 3. The amount of MgCO 3 was determined by reacting…

A: The given reactions are:

Q: When hydrobromic acid reacts with chlorine, bromine and hydrochloric acid are obtained: 2 HBr (aq) +…

A: We have to calculate the theoretical yield and percentage yield.

Q: The following is a balanced reaction: 2 AgNO3 (aq) + MgCl2(aq)  --> 2 AgCl (s) + Mg(NO3)2(aq) If…

A: The given balanced reaction is, 2AgNO3aq+MgCl2aq→2AgCls+MgNO32aq......(1)

Q: What is the mass in grams of aluminum metal (26.98 g/mol) that reacts to form 2.80 g of iron (55.85…

A: Given, 3 FeO (l) + 2 AI (l) ---> 3 Fe (l) + 1 Al2O3 (s) mass of Iron (Fe) formed = 2.80 g mass of…

Q: A chemistry student carries out this reaction, beginning with 2.10 grams of NaBr and 3.25 grams of…

A: Initially,  mass   of   NaBr         =  2.10g Mass of   Pb(NO3)2    =  3.25g The balanced chemical…

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: Sulfuric acid can dissolve aluminium metal according to the reaction below. Suppose you wanted to…

A: Balanced chemical equation: 2Al(s) + 3H2SO4(aq) ------->  Al2(SO4)3(aq) + 3H2 From the above…

Q: In an experiment, 0.2490 g of sodium bicarbonate, NaHCO3(s) was allowed to react with excess…

A: In the given question we have to calculate the percent yield of NaCl in the following reaction,…

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

A:

Q: A student, adds 136.92 g of sucrose (FW = 342.31) to exactly 400.0 mL of dH20. The total solution…

A: given, mass of sucrose = 136.92 g molar mass of sucrose = 342.31 g mol-1 volume of water = 400.0 mL…

Q: If 335 g of Pb(NO3)2 (FW 331.21 g/mol) is added to a solution containing 215 g of K3PO4 (FW 212.27…

A:

Q: Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching…

A: Mass of phosphoric acid = 2.0 x 10 3 g

Q: NaHCO3 can be used to neutralize excess acid in situations such as, for instance, acid spills in the…

A: Given, Concentration of the nitric acid (HNO3) solution = 1.00 M = 1.00 mol/L Note: 1000 mL = 1 L…

Q: One of the challenges astronauts face is in space travel is the build-up of carbon dioxide in their…

A:

Q: Consider the following reaction: UO₂ (s) + HF (aq) → UF4 (s) + H₂O (1). You mix together 20.0 mL of…

A: Theoretical yield is the maximum yield of the product that can be obtained in a chemical reaction.…

Q: What quantity in moles of NaOH are there in 225.0 mL of 2.50 M NaOH?   What is the percent by weight…

A: * Mole = Mass of substance / Molar mass of substance   * Molarity = Moles of substance/volume of…

Q: an iron nail has a mass of 1.12 g, what mass of rust would form

A: Number of moles = mass / molar mass  Number of moles of Fe = mass of Fe /55.845gmol-1

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: The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In…

A: As per the given chemical reaction2 moles of MnCO3 yields 2 moles of MnO2. In the second reaction 3…

Q: In a reaction of 4.3 g of H2 (am = 2.016 g/mol) and 6.11 g of O2 (am = 32.00 g/mol), 2.4 g of water…

A: Given, Mass of H2 reacts = 4.3 g Molar mass of H2 = 2.016 g/mol Mass of O2 react = 6.11 g/mol Molar…

Q: If 55.0 g of AgNO₃ (FW 169.87 g/mol) is added to a solution containing 45.0 g of CaBr₂ (FW 199.89…

A: Given balanced chemical reaction is 2 AgNO3(aq) + CaBr2(aq) →2AgBr(s) + Ca(NO3)2(aq)

Q: If 65.0 g of AgNO₃ (FW 169.87 g/mol) is added to a solution containing 45.0 g of CaBr₂ (FW 199.89…

A: The mass of AgNO3 is 65.0 g.The formula weight of AgNO3 is 169.87 g/mol.The mass of CaBr2 is 45.0…

Q: Consider the following reaction: C3H8 + O2 → H2O + CO2. (a) Balance the reaction. (b) If you start…

A: We have a unbalanced equation , we have to balance it, Then we are having 100 g of each reactant ,we…

Q: Magnesium hydroxide, Mg(OH)2, is the active ingredient in milk of magnesia. It neutralizes excess…

A: We have given a balance chemical equation as follow                               Mg(OH)2(s)  +…

Q: Consider the balanced equation of KI (molar mass=166.0 g/mol) reacting with Pb(N03)2 to form a…

A: Chemical reaction 2KI (aq) + 2 Pb(NO3)2 (aq) →PbI2 (s) + 2KNO3 (aq) Here Pb(NO3)2 used in excess.…

Q: Barium oxalate is used as a colorant to produce the green color in fireworks.  Imagine that you have…

A: Given,when barium hydroxide octahydrate ( Ba(OH)2·8H2O) reacts with oxalic acid…

Q: A student prepares aspirin using 17.530 grams of salicylic acid (MW = 138 g/mol) and 5.00 mL of…

A: The balanced reaction is as follows:        C7H6O3    +    C4H6O3     →     C9H8O4      +…

Q: 69.0 g of AgNO₃ (FW 169.87 g/mol) is added to a solution containing 45.0 g of CaBr₂ (FW 199.89…

A: The question is based on the concept of reaction stoichiometry.We need to calculate mass of…

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: Which of the following reactions does the chemical equation below best represent? 3 Cu(CI), (aq) + 2…

A:

Q: Natural waters often contain relatively high levels of calcium ion, Ca²+, and hydrogen carbonate ion…

A:

Q: For the balanced reaction      Mn2(SO4)5(aq) + 10LiOH(aq) --> 2Mn(OH)5(s) + 5Li2SO4(aq) how many…

A: The question is based on the concept of reaction stoichiometry. Where to calculate mass of lithium…

Q: 4. An old antacid commercial claimed that each tablet of their product could "neutralize 47 times…

A: 0.0068 moles of HCl is required to neutralize the antacid tablet.     The equation of the reaction…

Q: If 465 g of Pb(NO3)2 (FW 331.21 g/mol) is added to a solution containing 215 g of K3PO4 (FW 212.27…

A:

Q: As203 (s) + 6 Zn(s) + 6 H₂SO4(aq) - ----> 2 AsH3(g) + 6 ZnSO4(aq) + 3 H₂O(1) a) In a lab exercise, a…

A:

Q: Consider the following reaction: If 10.0 g of KF are used, how many grams of CaF2 can be formed?…

A: Given, Ca(NO3)2(aq) + 2KF(aq) → CaF2(s) + 2KNO3(aq) mass of KF reacts = 10.0 g mass (in grams) of…

Q: Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching…

A:

Q: ron(II) sulfide reacts with hydrochloric acid according to the reaction…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: Chemists can produce silver metal by reacting copper metal with a solution of silver nitrate: Cu(s)…

A: GivenCu(s)  +  2 AgNO3(aq)  →  2 Ag(s)  +  Cu(NO3)2 (aq)Moles of Cu initially = 0.24 molMoles of…

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".