Write a balanced equation for this reaction. (You do not need to include states.) How many kilograms of sodium dichromate, Na2Cr2O7, are necessary to produce 130.4 kg of sodium hydrogen sulfate? How many kilograms of chromium(VI) oxide are formed when 130.4 kg of sodium hydrogen sulfate is made?

Q: mixture of O2 (g) and H2 (g) explosively react to form steam H2O (g) in the presence of an electric…

A:

Q: Silicon carbide, SiC, is used as an abrasive for many industrial processes. If you want to produce…

A: Given-> Weight of SiC = 1.00 kg = 1000 gm (1 kg= 1000g)

Q: a)Sodium thiosulfate, Na2S2O3, is used as a fixative in photography.  What is the oxidation number…

A: Oxidation state: It describes the extent of oxidation of an atom in a compound . It is an…

Q: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

A: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Given - Weight of Al2O3= 12.6kg = 12.6 × 103 g (1kg = 1000g) Weight of NaOH=59.4kg = 59.4 × 103 g…

Q: Silicon tetrachloride (SiCl4 ) can be prepared by heating Si in chlorine gas:  Si(s) + 2Cl2(g) ->…

A:

Q: 6. A combustion reaction occurs when decane, C10H22(7), is burned in the presence of oxygen gas to…

A: The objective is to write the balanced equation of combustion of decane in the presence of oxygen.…

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: Carborundum (silicon carbide), SiC, is a very hard material used as an abrasive on sandpaper and in…

A: Given thatCarborundum (silicon carbide) is prepared by the reaction of pure sand with carbon at a…

Q: Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this…

A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: To a crucible and cover weighing 33.392 g is added a sample of a copper (II) chloride hydrate (CuCl2…

A: Given data, Mass of crucible + cover = 33.392g Mass of crucible + cover + sample = 34.405g Mass of…

Q: The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be…

A: Sodium fluoride is a compound made up of sodium metal and fluorine non metal.

Q: b The Ostwald process for the commercial production of nitric acid from ammonia and oxygen involves…

A: Given reactions.

Q: Write a balanced chemical equation for the hypothetical reaction of liquid dichloromethane, CH2CI2,…

A: Given that : We have to write a balanced chemical equation of liquid dichloromethane, CH2Cl2, with…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: All atoms of all elements and charges should be balanced in a balanced chemical reaction.

Q: Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: For the net chemical  reaction we have to eliminate the intermediate.

Q: 7.5 g aluminum was heated with sodium chlorate (NaClO3) in an evacuated glass vessel. The heating…

A: A numerical problem based on the oxidation of Al into Al2O3, which is to be accomplished.

Q: and water. Write the balanced chemical equ

A: Balanced chemical equation is that in which number of different atoms of elements in reactant side…

Q: Bacterial digestion is an economical method of sewage treatment. The reaction is an intermediate…

A:

Q: Aluminum and iodine are both ground into a fine powder and combined in a heatproof dish where a…

A: Aluminum + iodine gives Al2I6 Al + I2 --> Al2I6 In next step we will balance this reaction.

Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: The explanation is given below-

Q: s)+2H,0(g)→C,H,(9)- nd step, acetylene, carbom

A: The two reaction is as follows: First reaction: CaC2(s) + 2H2O(g)  ----> C2H2(g) + Ca(OH)2 (s)…

Q: Imagine that you are given 0.2500 g of a sample of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O).…

A: The mass of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O) sample is = 0.2500 g The mass of…

Q: The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult…

A: Answer:Balancing of a chemical equation is based on the law of conservation of mass which states…

Q: Write the balanced chemical equation for the reaction of magnesium metal with oxygen gas to form…

A: Mass of Mg = 10.0 g Moles of Mg = 10.0g/24.305g/mol = 0.411 mol Mass of Oxygen = 10.0g Moles of…

Q: Gaseous water (H₂O) and solid calcium oxide (CaO) are formed by the decomposition of solid calcium…

A: A chemical reaction in which a single reactant breaks down into two or more products is called a…

Q: A sample of soda-lime glass for tableware is analyzed and found to contain the following percentages…

A: Given- % by mass of oxides SiO2 = 72.4% Na2O =18.1% CaO = 8.1% Al2O3 =1.0% MgO = 0.2% BaO = 0.2%…

Q: Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high…

A: At high temperature, when gaseous ammonia passed over copper (II) oxide produces nitrogen gas and…

Q: Ammonium perchlorate (NH4ClO4 or AP) is the principal component of solid rocket propellant. Suppose…

A: Given: Mass of NH4ClO4 = 63.3 g Molar mass of NH4ClO4 = 117.49 g/mol Molar mass of H2O = 18.01528…

Q: What mass of the aluminum ore bauxite, Al2O3, is needed to produce 10 kg of pure aluminum in the…

A:

Q: Nitric acid (HNO3) reacts with iodide ions (I-) to form iodine (I2) and nitrogen oxide (NO) in an…

A: In the redox reaction, we balance both half-oxidation and reduction reactions. Then we add both…

Q: Phosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of…

A: a) The given compound is phosphorous (V) oxide. This suggests that the oxidation state of…

Q: A hydrate of nickel(II) chloride (NiCl2·XH2O) decomposes to produce 29.5% water & 70.5% AC.…

A: Answer: This is the question based on the stoichiometry of the compound, where each type of species…

Q: (a) When aqueous solutions of Cr(NO3)3 and Nil2 are mixed, does a precipitate form? (b) Write a…

A: We have to find when Cr(NO3)3 and NiI2 are mixed , then which reaction occur? The above is a double…

Q: When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide…

A:

Q: The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be…

A: The reaction given is the reaction of Sodium metal with fluorine gas to form Sodium fluoride. The Na…

Q: The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be…

A: The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be…

Q: Aqueous iron(II) sulfate (FeSO4) and solid copper are produced by the reaction of solid iron and…

A:

Q: mass

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.