1. Hydrofluoric acid, an aqueous solution containing dissolved hydrogen fluoride, is used to etch glass by reacting with the silica, Si O2, in the glass to produce gaseous silicon tetrafluoride and liquid water. The unbalanced equation is HF + SiO2  SiF4 + H2O a. Calculate the mass of hydrogen fluoride needed to react with 5.68 g of silica. b. Calculate the mass of water produced in the reaction described in part A

Q: Fes04(s) + 4 H2(9) 1. Consider the following chemical equation. a. How many moles of Fe3O4 can be…

A: Given - 3Fe+4H2O->Fe3O4+4H2  Weight of Fe=16.8g  Weight of H2O=10g

Q: Nickel, a common metal used in a variety of alloys, is purified via the Mond process to a very high…

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Q: Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction 2K [Ag(CN)…

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Q: What is the formula for the limiting reagent? What mass of the excess reagent remains after the…

A: Number of moles = mass/molar mass  Mass = moles × molar mass

Q: Lead(II) carbonate, also called "white lead, was formerly used as a pigment in white paints.…

A: The reaction taking place is given as, => Pb(C2H3O2)2 (aq) + H2O (l) + CO2 (g) → PbCO3 (s) +…

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

A: Given  Mass of KClO3= 52.9 g We know that, Number of moles of KClO3= mass/ molar mass Number  of…

Q: Suppose 8.00g of CH4 is allowed to burn in the presence of 6.00g of oxygen. How much (in grams) CH4,…

A: The given reaction is as follows,

Q: 1. The neutralization reaction between hydrochloric acid and calcium hydroxide produces calcium…

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

Q: The thermite reaction produces iron metal and aluminium oxide from a mixture of powdered aluminium…

A: The limiting reactant and the mass of the iron metal produced in the given reaction has to be…

Q: If a reaction vessel initially contains 9 mol A and 8 mol B,how many moles of A, B, and C will be in…

A: The reactant which is completely consumed in a chemical reaction and limits the product formation is…

Q: 49. Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction…

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

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A:

Q: 2. Heating together the solids NH:Cl and Ca(OH)2 can generate ammonia. Aqueous CaCl2 and liquid H:O…

A: The chemical reaction :  NH4Cl(s) + Ca(OH)2(s) ---> NH3(g) + CaCl2(aq) + H2O(L)  Mass of each…

Q: 12.00 g of a potassium hydroxide, KOH solution is mixed with 40.00 g of lead (II) nitrate, Pb(NO3)2…

A: Given  Mass of KOH = 12 gram  Mass of Pb( NO3 )2  = 40 gram  Limiting reactant = ?

Q: Calcium hydroxide, used to neutralize acid spills, reacts with hydrochloric acid according to the…

A: We have given that  Ca(OH)2 +     HCL   →  CaCl2 +    H2O No. of mole of Ca(OH)2 = 2.80 mole No.of…

Q: When 22.0g of NaOH and 21.0g of H2SO4 are mixed and react according to the reaction: 2 NaOH + H2SO4…

A: Calculate the number of moles of NaOH and H2SO4. Their molar masses are 40 g/mol and 98 g/mol…

Q: Nitrogen dioxide (NO2) is one of the compound produced in combustion reactions of a fossil fuel. The…

A: Balance the given chemical equation  :

Q: A silvery-white, lightweight malleable metal is used in a huge variety of products including cans,…

A: Given: Mass of Al2O3 reacted=8.25×105 g Mass of Carbon reacted=7.50×105 g Yield=35%

Q: The thermite reaction produces iron metal and aluminum oxide from a mixture of powdered aluminum…

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Q: 2. When a 2.00-g strip of zinc metal is placed in an aqueous solution containing 2.50 g of silver…

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Q: Preparation of the pure silicon used in silicon chips involves the reaction between purified liquid…

A: Limiting reactant It is a reactant in a chemical reaction which iss consumed completely and gives…

Q: 39. Thionyl chloride, SOCL2, is used as a very powerful drying agent in many synthetic chemistry…

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Q: What is the limiting reagent when 8.784 g of Fe is allowed to react with 39.78 g of water according…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Consider the following reaction: Mg(OH)2(s) + 2 HCI(aq) MgCl2(aq) + 2 H2O(1) If the reaction is…

A: Limiting reagent is the reactant that determines the amount of the product that is formed. It…

Q: 4. Hydrogen gas can be produced through the following reaction. Mg (s) +2HCI (aq) → MgCl2 (aq) + H2…

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Q: Consider the following unbalanced equation: Ca3(PO4)2 (s) + H2SO4(aq) → CaSO4(s) + H3PO4(aq) What…

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Q: Calculate the mass of water produced when 7.82 g of methane, CH4, reacts with an excess of oxygen in…

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Q: Aqueous solutions of sodium bicarbonate and sulfuric acid react to produce carbon dioxide according…

A: Limiting reagent is the reactant molecule that is consumed first in the reaction and therefore…

Q: Consider the following reaction: Mg(OH)2(s) + 2 HCl(aq) → MgCl2(aq) + 2 H2O(l) If the reaction is…

A: Limiting reagent is the reactant that determines the amount of the product that is formed. It…

Q: Hydrogen fuel can be generated using a process called coal gasification. Hydrogen gas is formed by…

A: Given that,    Hydrogen gas fuel is generated by the reaction of coal and oxygen in the presence of…

Q: For the following reaction, 33.5 grams of calcium hydroxide are allowed to react with 28.9 grams of…

A: The question is based on the concept of reaction stoichiometry. We have  to determine what is the…

Q: Suppose  0.0350 g Mg0.0350 g Mg is reacted with 10.00 mL of 6 M HCl10.00 mL of 6 M HCl to produce…

A: Consider the given reaction of magnesium with HCl to give magnesium chloride with hydrogen gas as;…

Q: O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions Nitric acid is often…

A: Nitric acid prepared from atmospheric gases nitrogen, oxygen and hydrogen. preparation takes place…

Q: 3. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

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Q: 2. Heating together the solids NH4CI and Ca(OH)2 can generate ammonia. Aqueous CaCl2 and liquid H2O…

A:

Q: Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium…

A: Given balanced Chemical equation is -  CaO(s) + 2NH4Cl(s) ---> 2NH3(g) + H2O(g) + CaCl2(s)…

Q: Consider the reaction: 2Sb(s) + 312(s) → 2Sbl3(s). Determine the limiting reactant and the…

A: First of all we will calculate moles of SB and I2. Limiting reagent is that substance which is…

Q: 49. Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction…

A: The balance chemical reaction :  2K[Ag(CN)2](aq) + Zn(s) ---> 2Ag(s) + Zn(CN)2(aq) + 2KCN(aq)…

Q: Industrially, vanadium metal, which is used in steel alloys, can be obtained by reacting vanadium(V)…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and…

A: Chemical equation for the given reaction is: 2Al + Fe2O3→ Al2O3 + 2Fe According to above equation, 2…

Q: Aspirin (C,HsO4) may be synthesized by mixing salicylic acid (C,H,O3) with excess acetic anhydride…

A: The given balanced equation is: C7H6O3 + C4H6O3    -----> C9H8O4 + C2H4O2   Since acetic…

Q: sample of a substance with the empirical formula XCl2 weighs 0.4041 g. When it is dissolved in water…

A: The question is based on the concept of quantitative analysis. we have to identify the salt and…

Q: (1) One of the steps in the commercial process for converting ammonia to nitric acid involves the…

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Q: 3.26. A strip of zinc metal weighing 2.00 g is placed in an aqueous solution containing 2.50 g of…

A:

Q: ilver is often extracted from ores such as K[Ag(CN)_2] and then recovered by the reaction…

A: The number of particles present in one mole of a substance is equal to the Avogadro's number which…

Q: The formation of rust which is iron (III) oxide on the surface of iron metal is an…

A:

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".