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

A: 1) Molar mass of CaO, MM = 1 x MM(Ca) + 1 x MM(O)        = 1 x 40.08 + 1 x 16.0        = 56.08 g/mol…

Q: 23. Consider the reaction: 3 AgC2H;O2(aq) + Na3PO4(aq) → Ag:PO46) + 3 NaC2H3O2(aq) 4.000 g of silver…

A: "Since there are multiple subparts, we will answer only the first three subparts. If you require…

Q: 5. K3PO4 +Al(NO3)3 →_KNO3 +_AIPO4 a. Balance the reaction b. What is the reaction type? c. If 30.2g…

A: Since you have asked multiple questions, we will solve the first three sub-parts for you. If you…

Q: Acetylene gas, HCCH, is commonly used in high temperature torches. a. Write a balanced chemical…

A: a. The balanced chemical reaction of acetylene with hydrogen gas to form ethane is given as, C2H2…

Q: Considering the chemical equation below 3 NO2(g) + H20(1) → 2 HNO3(aq + NO(g) How many grams of…

A: Given a reaction:- 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g) We have to calculate the amount of NO2…

Q: a. Write the balanced chemical equation for the diagram above b. If you have 0.031 moles of…

A: A balanced chemical reaction is one where the number of atoms of each element is same on the product…

Q: 7. How many grams of aluminum chloride, AICI3 (MM 133,34 glmol). can be produced from 25.0 g of…

A: Aluminum reacts with chlorine to form aluminum chloride. The equation for the balanced chemical…

Q: 3. Hydrogen reacts with nitrogen to form ammonia by the following equation: 3 H₂(g) + N2(g) → 2…

A: We will first convert the mass of H2 and N2 to moles and determine the effective moles using the…

Q: 5. Aluminum hydroxide reacts with sulfuric acid as follows: 2Al(OH)3(s) + 3H₂SO4(aq) → Al2(SO4)3(aq)…

A: a)  2Al(OH)3(s) + 3H2SO4(aq) → Al2(SO4)3(aq) + 6H2O(l) moles of Al(OH)3 react = 0.500 mol moles of…

Q: 4. Gold metal reacts with a combination of nitric acid and hydrochloric acid according to this…

A:

Q: Balance the following chemical equations.

A: A chemical equation is said to be balanced when the same number of each element is represented on…

Q: 1. A thermite reaction was used historically to weld. In the reaction, solid aluminium and solid…

A:

Q: Titanium (Ti) is a strong, lightweight metal used in the construction of rockets, jet engines, and…

A: Answers are explained below.

Q: 1. Plop, plop. Fizz, fizz. Alka-Seltzer¹ contains sodium bicarbonate (NaHCO3) and citric acid…

A: Given -> Reactant -> NaHCO3 , H3C6H5O7  Product -> Na3C6H5O7 , H2O , CO2

Q: 92. Aluminum metal reacts with elemental chlorine to form aluminum chloride, as shown here: 2 Al (s)…

A:

Q: The apparatus below contains ammonia, neon, and hydrogen chloride gases at a temperature of 27°C.…

A:

Q: 6) Oxygen gas and hydrogen gas combine to make water according to the following chemical reaction.…

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

Q: a. 4 Zn(s) + 10 HCI(aq) → 4 ZNCI,.5(aq) + 5 H2(g) b. Zn(s) + 2 HCI(aq) → ZnCl2(aq) + H2(g) c. 4…

A: Given reactions,

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: 4) Given the equation: Si + N2 → Si;Na and suppose 2.50 g of Si reacts with 1.75 g of N2. a. What is…

A: Limiting reagent is the reactant which is present in the lesser amount and is responsible for…

Q: a. For the following balanced chemical equation, calculate how many grams of the products would be…

A:

Q: B3. What is the coefficient of oxygen gas in this combustion reaction when the equation is correctly…

A: The combustion reaction of organic molecules can be generalized as below-

Q: 12. Iron metal can be obtained from iron(III) oxide by reaction with carbon monoxide at elevated…

A:

Q: Aluminum chloride is made from scrap aluminum through the following balanced reaction. 2 Al (s)   +…

A:

Q: 2.80 grams of aluminum foil is mixed with 104.0 mL of 2.00 M CuSO4 solution. The reaction is 2Al(s)…

A: Given: 2Al(s) + 3CuSO4(aq) -----> 3Cu(s) + Al2(SO4)3(aq) a) Determine the moles of Al and CuSO4.…

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".