SiO:(s) + 2 Fe(s) +

Q: mass

A:

Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,…

A: Given,The water sample with a hardness count of 175 mg CaCO3/L

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: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: Turquoise, CuAl 6 ( P O 4 ) 4 ( OH) 8·5 H 2 O(s), is one of the most valuable non-transparent…

A: Calculate molar mass of both hydrated and anhydrous form of the mineral and then calculate the mass…

Q: Balance the following chemical equation (if necessary): 2 BF;(s) + Li,SO;(s) → 2 LİF3(s) + B2S 0,…

A:

Q: Balance the following chemical equation (if necessary): SiO₂ (s) + C(s)→→ Si(s) + CO(g)

A:

Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: FeSO4   +   Potassium phosphate  à  Iron (II) phosphate  +  K2SO4 Identify the spectator ions

A:

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: A sample of nickel silver contains 18.0% nickel by mass. What mass of nickel silver must be melted…

A: Given: Sample of Nickel Silver contains: 18% Nickel by mass.

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: chlorine

A: according to the chemical reaction equation,  4moles of Cl2 react with = 1mol of CS2  1mol of Cl2…

Q: (b) 1.9-BBN 2. H₂O2, KOH

A: Given,The reaction:

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Hi, as you have posted 2 questions and have not mentioned which one you want us to solve for you.…

Q: Quartz, SiO2, contains 46.7% silicon. What mass of silicon is present in 370 g of quartz?

A: To solve this problem we have to calculate the mass of silicon present in quartz .

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: If the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg…

A: Given: Mass of CaO = 22.3 kg Mass of P4O10 = 10.5 kg  To find: mass of calcium phosphate in kg…

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

A: Part A) mass of H2 = 5.4×104 kg Part B) mass of NaOH = 2.1×106 kgExplanation:Step 1:- Given…

Q: Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means…

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: 2 V2O5  +  5 Si →  4 V +  5 SiO2 Given the above balanced equation, calculate the number of grams…

A: Given , Mass of V metal = 476 g

Q: Describe how the following changes are brought about: (i) Pig iron into steel. (ii) Zinc oxide into…

A: ( i ) Pig iron into steel: Pig iron is charged into basic oxygen furnace (BOF) and water cooled…

Q: Write a balanced equation for the reaction of nitric acid, HNO3(aq), with magnesium hydroxide,…

A:

Q: Experiment #6: Synthesis of Malachite Mass of CuSO4 • 5H2O: 3.100 +/- 0.001 _g (with error) 1.524…

A: A numerical problem based on theoretical yield, which is to be accomplished.

Q: Balance the following chemical equation (if necessary): C5H10(g) + O₂(g) → H₂O(g) + CO₂(g)

A: A balanced chemical equation contain equal number of atoms of each element on both sides of the…

Q: Amounts of tin may be alloyed with copper to produce bronzes of varying composition and properties.…

A: Given :  Mass of bronze = 8.9394 g  Mass of mixture of oxides = 11.2311 g

Q: This

A: According to the question, a 235.2 g sample of ground water is analyzed for calcium. The Ca2+ in the…

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.