Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that had been diluted by mixing with table salt (sodium chloride). When 2.00 g of the mixture undergoes combustion, 2.61 g of CO₂ is produced. What is the mass percent of morphine in the mixture?

Q: What is the molarity of a solution made by dissolving 5.42 g of magnesium nitrate {Mg(NO3)2} in…

A: Here the solute is magnesium nitrate, Mg(NO3)2 and solvent is water.  Since molarity is moles of…

Q: A sample of a substance with the empirical formula XCl₂ weighs 0.5984 g. When it is dissolved in…

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: A strontium hydroxide solution is prepared by dissolving 12.50 g of Sr1OH22 in water to make 50.00…

A: mass of strontium hydroxide (m) = 12.50 g volume of solution (V) = 50.00 ml

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

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Q: When 250.0 mL of .2500 M Li2CO3 (aq) were mixed with 350.00 mL of .1500M AlBr3 (aq), 2.500 grams of…

A: Molarity of Li2CO3 = 0.2500 M Volume of Li2CO3 = 250 mL = 0.250 L Molarity of AlBr3 = 0.1500 M…

Q: A mixture of NaCl(s) and BaCl2(s) weighing 2.86 grams is dissolved in water. When AgNO3(s) is added…

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Q: Most vinegar sold in stores is a mixture of 5.0% acetic acid (by mass) and water. What mass of…

A: Given:   The mass percentage of acetic acid is 5.0 %. The mass of acetic acid is 20.0 g.

Q: What is the molarity of a barium chloride solution prepared by dissolving 9.9 grams of BaCl2•2(H2O)…

A: Molarity = (Mass/molar mass)(1000/V(ml)).Mass = 9.9g.Molar mass = 244.26g/mol.Volume = 151.0ml.

Q: The solid fuel in the booster stage of the space shuttle is a mixture of ammonium perchlorate and…

A: The question is about to balance the given Chemical Equation and find the amount of Aluminum…

Q: What is the percentage of calcium carbonate present in the original mixture?

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Q: • If there is reaction, write a complete chemical equation (reactants products) (Don't forget to…

A: a) First reaction occur because Na solid is more reactive and it will be easily oxidized to form…

Q: Complete the chemical equation below. Put in the states for all the products and balance the…

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Q: Aqueous solution of ammonium phosphate (NH4)3PO4 is mixed with an aqueous solution of strontium…

A: In the given question, Ammonium phosphate is reacting with strontium sufide and we have to provide…

Q: A 13.2010g sample of hydrated zinc sulfate, ZnSO4 • xH2O), was strongly heated until no further…

A: For the reaction., ZnSO4 • xH2O ----> ZnSO4 + xH2O  Given Mass of ZnSO4 • xH2O = 13.2010 g Mass…

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

A: Ilmenite can be separated from sand with magnets

Q: a) Write a balanced chemical equation for the reaction.  b) What mass of acetic acid is in the…

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Q: Mesitylene is a liquid hydrocarbon. Burning 0.582 g of the compound in oxygen gives 1.92 g of CO2…

A: We have to predict the empirical formula for mesitylene.

Q: 1. 2.8 g of nitrogen gas reacted with excess oxygen according to the following scheme: N₂ + O2 NO…

A: In the given reaction ->>Weight of nitrogen gas = 2.8 gmActual yield = 3.0 gm

Q: The balanced chemical equation is P,(s) + 6 CI,(g) → 4 PCI,(g). What is the mass in grams of…

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Q: Write a balanced reaction for the reaction of nitrate ions with copper metal in aqueous solution,…

A: Given: nitrate ion react with copper metal.  To find : Balanced equation for the given reaction.…

Q: A student analyzes a sample of rock that contains the element calcium (Ca). In the student's…

A: Given that,182.2 mg of the rock produces 120.7 mg of CaC2O4 on treatment of Na2C2O4 We have to find…

Q: What was the percent of potassium chlorate in the mixture

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Q: Complete and balance the reaction equation in Figure 7. What is the molecular formula of the salt…

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Q: Write a balanced chemical equation for the neutralization of aqueous perchloric acid, HClO4 (aq),…

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Q: A 12.3 g sample of an alloy of Mg and Al produces 1.66 mol of H2 when added to excess HCl. What…

A: Given: Total mass of alloy = 12.3 g. And moles of H2 produced = 1.66 mol. Assuming that there are…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Balanced chemical equation can be define as the reaction in which number of atoms of all the…

Q: b) An unknown flavouring contains C, H, and O. When 1.05 g of this substance is completely…

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Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

A: First step :  2MnCO3(s) + O2(g) -------> 2MnO2(s) + 2CO2(g)  Second step :  3MnO2(s) + 4Al(s)…

Q: What mass, in grams, of iron (III) hydroxide is needed to produce 6.381x10^23 molecules of water

A: Moles of component is defined as ratio of the given mass to the molar mass. The relation for the…

Q: 1)What is the theoretical yield (in grams) of CaCO3 in the precipitation reaction that occurs when…

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Q: For the synthesis of boric acid; 7.94 g of anhydrous borax was taken and 15 mL of water was added…

A: Please find the attached images for answer

Q: Determine the mass of sodium nitrate produced when 0.73 g of aqueous nickel(II) nitrate reacts with…

A: NOTE : There is a typing error in question. The solid will be of nickel (II) hydroxide and and…

Q: A 0.732 g mixture of methane, CH4, and ethane, C2H6, is burned, yielding 2.063 g of CO2. What is the…

A: First, we need to understand the stoichiometry of the reactions. When methane (CH4) and ethane…

Q: 2. How many grams of oxygen gas must be reacted with excess sulfur dioxide to produce 87.1 g of SO;?…

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Q: If a sample of coke is 95% carbon by mass, determine the mass of coke needed to react completely…

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Q: What mass of Na2SO4 is required to precipitate all of the lead cations found in an 18.5 ml sample of…

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Q: reaction C

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Q: One of the reactions in the Solvay Process involves the reaction of calcium oxide with water to…

A: Theoretical yield is the maximum amount of product that can be formed in a chemical reaction based…

Q: The US Environmental Protection Agency (EPA) places limits on the quantities of toxic substances…

A: Formulae used: Molarity =Mole soluteSolution in Litre

Q: If 25.5 mL of a 0.123 M solution of iodide was added to 22.3 mL of a 0.209 M solution of iodate ions…

A: The reactants given are iodide i.e I- and Iodate i.e IO3- and the product forming is I3-. Hence the…

Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Q: A bright chrome yellow color is the main pigment in the paint used to create the yellow lines seen…

A: Number of moles - Ratio of given mass of substance to the molar mass of substance is called number…

Q: Which of the following reactions can be described as an atom combination reaction? (a) Ca(g) + S(g)…

A: (a) Ca(g) + S(g) + 4 O(g) → CaSO4(s) (b) C(graphite) + 2 H2(g) → CH4(g)   (e) K(s) + Mn(s) + 2 O2(g)…

Q: The following variables (A and B) are imaginary elements.  The cation A2+ and the anion B3- formed…

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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.