A     student     carried     out     the     reaction     below     starting     with     1.993     g     of    unknown     (X2CO3),     and     found    that    the    mass    loss    due    to    CO2 was    0.593    g.         X2CO3(s)        +        2    HCl(aq)        →        2    XCl(aq)        +        H2O(l)        +        CO2(g)       4. What    is    the    molar    mass    of    X2CO3

Q: The theoretical yield of NaClO2 when the reaction below was performed in the laboratory, was 13.45…

A: The question is based on the concept of reaction calculations. we have to determine percentage yield…

Q: Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in…

A:

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: 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: How many moles of Al are necessary to form 38.6 g of AIBR3 from this reaction: 2 Al(s) + 3 Br2(1) →…

A: Answer: 0.1447 Moles of Aluminium (Al) necessary to form 38.6 gram of AlBr3.

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: The following reaction is known to have a 65.0% yield of copper. 3 Cu(NO3)2(aq) + 2 Fe à 2…

A: We have given that 3 Cu(NO3)2(aq) + 2 Fe(s) → 2 Fe(NO3)2(aq) + 3 Cu(s) and the reaction yield 65%…

Q: Balance the chemical equation. X... CH(1) + 150₂(g) → 12CO₂(g) + 6H₂O(g)

A: Given is chemical equation. Given equation is of combustion reaction of benzene.

Q: Balance the following chemical equation (if necessary): 2 C₂H₂(g) + 15 O₂(g) → 10 H₂O 10 CO 10 2

A: Balanced chemical equation: Balance chemical equation can be define as the reaction in which number…

Q: Cr2O72– (aq), reacts with zinc metal to produce Cr3+ (aq) and Zn2+ (aq) ions. When the reaction is…

A:

Q: A     student     carried     out     the     reaction     below     starting     with     1.993…

A:

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaCl to give Cl2, H2, and…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: Hydrazine can be synthesized via the following reaction: 2NH3(aq) + Cl2(g) + 2NaOH(aq) → N₂H4(aq) +…

A:

Q: student     carried     out     the     reaction     below     starting     with     1.993     g…

A: Initial amount of compound =1.993g Amount of CO2=0.593 g  X2CO3+2HCl ->2XCl +H2O+CO2

Q: What mass of HCI, in grams, is required to react with 0.520 g of Al(OH)3? Al(OH)3 (s) +3HCI(aq) →…

A:

Q: How many moles of lithium hydroxide would be required to produce 68.0 g of Li₂CO₃ in the following…

A: Given, mass of Li2CO3 = 68.0 g Molar mass = 73.891 g/mol

Q: Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in…

A:

Q: What is the mass in grams of Cuo that would be required to produce 21.50 moles of nitrogen gas in…

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: Iodine is prepared both in the laboratory and commercially by adding CI2 (g) to an aqueous solution…

A:

Q: If 0.615 g of magnesium hydroxide reacts with 0.950 g of sulfuric acid, what is the mass of…

A:

Q: What mass of CaCO3 can react with 82.3 g of HClO3 according to the following reaction? CaCO3(s) + 2…

A: From reaction it's clear one mole of calcium carbonate react with two mole of HClO3

Q: Ca: (PO,), (s) + Si0,(s) + C (s) → , (s) + CO(g) Ca SiO, (s) + P + co(g) 3 2

A: Balanced chemical equation is given as follows

Q: What mass of phosphoric acid can we produce by the following reaction           P4(s) + 5 O2(g) + 6…

A: The reaction taking place is  P4(s) + 5 O2(g) + 6 H2O(l) → 4 H3PO4(s) Given : mass of P4 = 334.2 g…

Q: moles o

A:

Q: How many grams of CuO would be required to produce 53.0 moles of nitrogen gas in the following…

A: The balanced reaction given is  2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g) Hence from the…

Q: moles of lithium hydroxide would be required to produce 59.5 g of Li₂CO₃ in the following chemical…

A: The given chemical equation is as follows: 2LiOH + CO2 →Li2CO3 + H2O

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

A:

Q: What is the total number of nitrogen atoms on the right-hand side of this chemical equation? 3…

A:

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: What is the mass in grams of CuO that would be required to produce 40.50 moles of nitrogen gas in…

A: Ammonia reacts with CuO to form copper, nitrogen, and water. The equation for the balanced chemical…

Q: 2. How many grams of oxygen gas must be reacted with excess sulfur dioxide to produce 87.1 g of SO;?…

A:

Q: Which of the following correctly illustrates the conservation of mass for the reaction below?…

A: We have to explain which of the following correctly illustrates the conservation of mass for the…

Q: What is the maximum mass of oxygen, in grams, that can be obtained from 26.25 g of KO2? 4 KO2(s) +…

A: Molar mass of KO2 = 71.1g/mol

Q: How many grams of CO₂ can you produce by reacting 10.85 g of Fe₂O₃ with excess CO according to the…

A:

Q: How many molecules of HCl would have to be present to form 39.28 g of MgCl₂? Mg(OH)₂(s) + 2 HCl(aq)…

A: Answer: 4.97×1023 molecules of HCl

Q: How many moles of lithium hydroxide would be required to produce 82.5 g of Li₂CO₃ in the following…

A:

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 mass in grams of oxygen gas that can be produced from 0.251 grams of carbon dioxide?  4…

A: The objective of the question is to find out the mass of oxygen gas that can be produced from a…

Q: Look at the balanced chemical equation for the reaction between copper and nitric acid: Cu(s) +…

A:

Q: Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: What is the mass (in grams) of 5.03*10^22 molecules of CO2 molecules?

A: 1 mole = 6.0226 x 1023 Molar mass of CO2 = 44.01 g/mol Given that: Number of molecules of CO2 = 5.03…

Q: What mass in grams of the dihydrate H2C2O4 • 2 H2O (molar mass = 126.0 g/mol) is needed in order to…

A: The dihydrate H2C2O4 • 2 H2O losses two equivalent of water molecules to form H2C2O4  in the…

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

Q: How many moles of nitrogen gas would be produced if 3.56 moles of copper(II) oxide were reacted with…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

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".