A 5.000 gram sample of MnB4O7·•8H2O is heated to drive off the water. What is the mass of the anhydrous salt after heating? in grams

Q: 3. Given the following reactants, predict the expected products and balance the chemical equation.…

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Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of anhydrous copper chloride

Q: a) Assuming that the coal was 81.5 % carbon by mass and that combustion was complete, calculate the…

A: Given: Part a) Amount of Carbon =81.5 % Part b) Amount of Sulfur = 4.40% Total amount of coal in an…

Q: 2 po All the following are characteristic properties of phosphorus. Which one is a chemical…

A: In the above question some properties of phosphorus is given ,some of them are physical or chemical…

Q: Length of heating time for empty crucible and lid                                        _____10.0…

A: Given  Length of heating time for empty crucible and lid  10 min Mass of empty crucible and lid…

Q: What are the coefficients, written from left to right, for the following chemical equation?…

A: Balanced chemical equation: A chemical reaction is said to be balanced if the number of atoms of…

Q: 10.8 mL of 0.25 M HCl(aq) reacts with an excess of Mg(OH)2(aq), what mass of magnesium chloride…

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Q: Balance chemIcal eojuasias NO + H20 2)_ Nig Og + Fe. Ni COH)2+ Fe COH72

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Q: 5.00 g of copper is reacted with 5.00 g of sulfur in a crucible and a compound composed of copper…

A: Mass percentage of substance is one of the ways to express composition of compounds. Mass percentage…

Q: What is a chemical property of sodium?

A: Sodium is an element with atomic number 11 and represented by the symbol Na.

Q: Which of the following features is internal-intrinsic? A. Iron cube volume B. NaCl(s) Crystal…

A: Intrinsic features are those features which do not depend on the volume or mass or number of…

Q: What is the maximum mass in grams of magnesium oxide that can be produced by the reaction of 6.8g…

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Q: Using your data, calculate the mass of magnesium metal that you reacted and the  mass of the product…

A: The chemical reaction involved in this process is 2Mg + O2 → 2MgO The mass of magnesium metal…

Q: A pure sample of Epsom salt was oven dried and loss 51.17% of its mass due to loss of water of…

A: To calculate the mole ratio, we would first calculate moles of both magnesium sulfate and water in…

Q: Approximately 12 billion kilograms of phosphoric acid (H3PO4) are produced annually for fertilizers,…

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Q: What is the approximate density of 1M HNO3 aq?   Thank you for your help!

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Q: Elemental phosphorus is used in the semiconductor industry. It can be obtained from an ore called…

A: We have to calculate the mass of fluoroapatite needed .

Q: Suppose you wish to calculate the mass of sulfuric acid that can be obtained from an underground…

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Q: experiment was done to determine the composition of a mixture of sodium chloride and sodium…

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Q: 2Cl2) is formed from sulfur I atoms in the reactants an

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Q: Balance the following chemical reaction and determine the coefficients of H2O and AIK(OH)4,…

A: A question based on stoichiometry that is to be accomplished.

Q: 4NO2(g)+O2(g)+2H2O(l) → 4HNO3(aq) The generation of the electricity used in a medium-sized home…

A: The given reaction is

Q: Potassium chloride is a salt substitute. It consists of potassium cations and chloride anions.…

A: 1.Element are simple  form of matter , example Na. 2.ionic compound are the compound form by cation…

Q: Which graph corresponds to this reaction? NH3(g) + HCI(g) 5 NH,CI(s) D AG AG AG AG +

A: In this question we are given a chemical reaction and we have to choose the correct graph between…

Q: Balance the following chemical reaction and determine the coefficients of H2O and AIK(OH)4,…

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

Q: H2S+NAOH NazS+H2O

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Q: what is the mass of silver, in grams, that can be theoretically produced?

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Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: A question about elements that is to be accomplished.

Q: A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity. Suppose…

A: Consider that coal contain two elements that is carbon and sulfur. Amount of sulfur present in the…

Q: Coke is an impure form of carbon that is often used in the industrial production of metals from…

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Q: 1. Fe:Os (I) + CO (g) –> Fe (1) + CO2 (g)

A: Answer: In normal oxides, oxygen always shows -2 oxidation number and that will be our basis to find…

Q: 0.896 g sample of impure magnesite, MgCO3 , was decomposed with HCl; the liberated CO2 was collected…

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Q: Balance the following chemical reaction and determine the coefficients of H2O and AIK(OH)4,…

A: Balanced chemical equation is the equation in which number of atoms on left hand side and right hand…

Q: If 2.4 g Ti is reacted with 1.6 g F2 what mass of TiF4 will be produced?

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Q: If the mass of crucible and lid = 21.17 g Mass of crucible and lid and salt = 23.02g Mass of…

A: Given: Mass of crucible and lid = 21.17g Mass of crucible and lid and salt = 24.23g Mass of crucible…

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: Explanation:  Option D is correct  [C,H,O,N]      Soil organic matter is composed chiefly of carbon,…

Q: 4.5 g Sn

A: Given data are as followed: Tin coated can have tin in oxidation state of four. Amount of tin…

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

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Q: All of the following are properties of zinc. Which is NOT a physical property. It corrodes with…

A: In this question, we will select the statement which is not a physical property that means it is a…

Q: 1000 kg of calcium phosphate is made to react with 10% excess silica, SiO2 and 90% excess carbon to…

A: The law of conservation of mass states that mass in an isolated system is neither created nor…

Q: 5.60 X 104 g of hydrogen gas are produced during the electrolysis of water. Calculate the number of…

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Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen.  What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: If the same amount of electricity that is used to produce 500 g copper metal (Cu Cu") is used to…

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Q: Aspirin can be prepared from salicylic acid (C7H;O3), which has a molar mass of 138.12 g/mol, and…

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Q: Part B How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce…

A: Balanced equation: CO2 (g)  +  4H2 (g)  -----> CH4 (g) + 2H2O (g) Number of mol of methane =…

Q: 3) A mineral of calcium with the formula CaCO3¤Ca(OH)2 was analyzed by heating in a crucible, and…

A: Mass of sample CaCO3.Ca(OH)2 = Mass of crucible + sample - mass of empty crucible   = 26.12 - 23.45…

Q: Write the balanced chemical reactions, including the state of the matter. 1. MgCl2 (aq) + NaOH (aq)…

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

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaClNaCl to give Cl2Cl2,…

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

Q: One of the sources of iron is magnetite, Fe3O4 (FeO and Fe2O3 mixed), which reacts with coke…

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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.