1. Balance the following equations: A. Pb + Cl2 - PbCl3 B. PbBr3 + H2SO4 → Pb2 (SO4)3 + HBr C. C8H200+ O2 - CO2 + H2O D. HSICI3 + H2O → H10SI10015 + HCI

Q: What mass of iron(III) oxide is produced from the reaction of 15.0g oxygen with 15.0g of iron? 4Fe+…

A: Number of moles is calculated by dividing the mass with molecular mass.

Q: Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate…

A: According to the question, Cr in an oe exists as Cr2O3, and is converted quantitatively to BaCrO4.…

Q: With the given info what is the mass percent of As in the 1.00 kg soil sample? AsO4-3 +3 Ag+ =>…

A: Given : Mass of Ag3AsO4 produced = 0.370024 g And mass of soil sample = 1.00 Kg = 1000 g

Q: CaSO4⋅2 H2O (s) can be heated to completely drive off water to form CaSO4 (s). A 2.49 g sample of…

A: As there are three questions, we are solving the first question for you, rest to be solved please…

Q: phthalate requires 34.3 mL of 0.145M NaOH for neutralization, what percentage

A: At neutralization point,  N1V1  = N2V2  Where,  N1 = Normality of acid  V1 = Volume of Acid N2 =…

Q: Balance the following chemical equation by using matlab: P bCrO4 + HCI + F ESO4 → P bC12 + Cr2(SO4)3…

A: In balanced chemical equation number of atoms of each species are equal on both reactant and…

Q: Space crafts and submarines use lithium hydroxide to capture exhaled carbon dioxide based on the…

A:

Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Given: Mass of empty crucible and cover = 28.86 g Mass of crucible, cover, and hydrated salt = 32.86…

Q: Write a balanced chemical equation for the reaction that occurs when (a) Mg(s) reacts with Cl21g2;…

A: Balanced Chemical Reactions for the given conditions are discussed below -

Q: Balance the chemical equation shown below. What is the coefficient the should be placed in front of…

A: The chemical reaction follows the law of conservation of mass. According to the law of conservation…

Q: 1. Are the following equations balanced or unbalanced? 2Fe + 02 Fe203 2Na + 2HCI → H2 + 2NACI 2Na +…

A:

Q: - A compound has the empirical formula CoCl3 5NH3. One mole of it yields two moles of silver…

A: When Ag+ ion is added inot the solution it form precipitate with the Cl- ion and the no. Of moles of…

Q: For the following reaction, what does the balanced equation look like? aCr20,2- + bH + cPu 3+ +…

A: The given equation is, The unbalanced equation is, The oxidation numbers are assigned on each atom…

Q: Consider the following hypothetical chemical equation A2B + CD2 --> 2AD + CB (OR A2 B + C D2 right…

A:

Q: Uranium can be isolated from its ores by dissolving it as UO2(NO3)2, then separating it as solid…

A: The balanced chemical equation is as follows,

Q: The hydrated salt, MY3.XH2O, was heated strongly in a crucible to remove all the water molecules of…

A: From the given information , we have,         Mass of empty cruicible and cover, m1 = 28.86 g…

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

A:

Q: In the textile industry, chlorine is used to bleach fabrics. Any of the toxic chlorine that remains…

A: Given data: The mass of Na2S2O3 is 138.96 kg=138960 g. The mass of Cl2 is 52.72 kg=52720 g. Given…

Q: Pb(C2H3O2)2(aq) + H2O(l)+CO2(g)---PbCO3(s)+HC2H3O2(aq)  suppose a aqueous solution containing 1.40…

A: Mass of lead (II) acetate = 1.40 g  Mass of carbon dioxide = 5.80 g  Molar mass of lead (II) acetate…

Q: What is the percent by weight of silicon dioxide in a 1.0006g sample decomposed with hydrochloric…

A: #Experimental data: mass of the residue before volatilizing with silicon tetrafluoride, SiF4 =…

Q: 2. An iron ore was analyzed by dissolving a 1.1324 g sample in concentrated HC. The resulting…

A: Percentage of Fe and Fe3O4 can be calculated from the total moles of iron present in the sample.

Q: nalyze and solve the following problems. Provide complete solutions. Write all working equations u…

A:

Q: b) Excessive phosphate levels in water systéms may contribute to several environmental problems such…

A: "Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: How do i solve these three problems?

A: Let’s say we have a compound AxBy:Then,

Q: A 10.00 gram mixture of NaHCO3 and N22CO3 was heated and yielded 0.0357 moles of H2O and 0.1091…

A:

Q: formula

A:

Q: Balance the following equations and indicate whether theyare combination, decomposition, or…

A: Given reactions,    (a) C3H6(g) + O2(g) ---> CO2(g) + H2O(g)    (b) NH4NO3(s) --> N2O(g) +…

Q: If 100.0 mL100.0 mL of 0.361 M Na2SO40.361 M Na2SO4 is added to 100.0 mL100.0 mL of 0.881 M…

A: GivenVolume of the NaSO4 solution = 100mLMolarity of the NaSO4    =0.361MVolume of the Pb(NO3)2…

Q: Ammoniacal nitrogen can be determined by treatment of the sample with chloroplatinic acid; the…

A: When ammonium chloroplatinate decompose it produce ammonia gas, platinum, chlorine gas, and…

Q: A sample of magnetite  (impure Fe3O4) weighing 0.4500 g is fused with oxidizing flux and the ferric…

A: Magnetite is an ore of Fe with the formula Fe3O4

Q: . A compound with an empirical formula of C20H4 and a molar mass of 88 grams per mole. What is the…

A: 3) Given: Empirical formula = C2OH4  And molar mass = 88 g/mol.

Q: Precipitates used in the gravimetric determination of uranium include Na2U2O7 (634.0g/mol),…

A: Here the quantity of Uranium is supposed to be constant, then we need to determine which of the…

Q: What is the brown gas (name and formula) that nitric acid reacting with copper produces? How can you…

A: #1: Nitric acid, HNO3(aq), being a strong acid, reacts with copper, Cu(s) to produce a brown gas.

Q: reparation of Cr (accac)3 Reactants used: 0.26 g CrCl3 .6H20 1g of urea 0.8mL acetone   Actual…

A: The reactions involved are: Overall reaction of the synthesis:

Q: 0.60 g of hydrogen is allowed to react with 4.00 g oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(l)…

A: We have to predict the excess chemical and amount of product formed.

Q: The roasting of Cu2s(s) produces Cu(s) and SO2(g). What mass of sulfur dioxide is produced by the…

A: Ans e is correct

Q: If 100.0 mL of 0.1010.101 M Na2SO4Na2SO4 is added to 100.0 mL of 0.7790.779 M Pb(NO3)2Pb(NO3)2, how…

A: GivenVolume of the NaSO4 solution = 100mLMolarity of the NaSO4    =0.101MVolume of the Pb (NO3)2…

Q: Complete and balance the following chemical equations: H2O (l) + P2P5 --> Li2O (s) + H2O (l) -->

A:

Q: Fe2O3(s) + 2Al(s) → 2Fe(l) + Al2O3(s) a. What mass of Fe(l) will be produced if 15.0 g of Fe2O3 is…

A: The no of mole of any substance is defined as the ratio of mass of that substance given to that of…

Q: 7. 50 g of Vanadium is mixed with 50g of Ozone (03) to produce 65 g Vanadium (V) Oxide a) What is…

A: % yield = (actually mole /theoretical mole) ×100 No. of moles=Given massMolar mass

Q: Q3: A: What mass of AgNO3 is needed to convert 3.46g of Na2CO3 to Ag2CO3, and calculate the mass of…

A:

Q: Balance the following equations in which ethane, C2H6, burns in oxygen.    C2H6(g) + O2(g) --> C(s)…

A: Hello. Since the questions multiple subparts, the first three subparts are solved. In case the…

Q: Which chemical equation follows the of conservation of mass? A. NaOH + H2SO4 ------>Na2SO4 + 2H2O B.…

A: Sodium hydroxide reacts with sulfuric acid to form sodium sulfate and water. The equation for the…

Q: 9. How many kilograms of iron can be obtained from 635 pounds of an ore that is 72.0% hematite,…

A:

Q: How many moles of aluminum are needed to react completely with 97 moles of FeO? 2Al +3FEO--> 3Fe +…

A: Its a mole concept question  first find per mole of FeO then miltiply it with 2 to get final moles…

Q: stion 19 What coefficient is placed in front of 02 to complete the balancing of the following…

A: The answer is given as follows

Q: Assuming a 100% yield, 1.00 gram of aluminum will produce how many grams of potassium aluminum…

A: Number of moles of Al reacted = given mass / molar mass = 1 g / 26.982 g/mole = 0.037 mole

Q: Calculate the percent purity of copper in an ore in terms of Cu2O from the given data: Weight of…

A: Given that: mass of copper ore = 1.20 g Volume of Na2S2O3 = 40.00 mL 1.00 mL Na2S2O3 ≈ 0.004175 g…

Q: 4. A mixture of KC1O3 and MnO2 weighing 1.75g was heated to 3000C until decomposition was complete.…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number 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".