A mixture of potassium chloride and potassium bromide weighing 3.583 g is heated with chlorine, which converts the mixture completely to potassium chloride, The total mass of potassium chloride after the reaction is 3.127 g. What percent of the original mixture is potassium bromide?

Q: There are many minerals which contain silver. A 2.22 g sample of one of these, matildite, is placed…

A: The reaction between silve and magnesium chloride for analysis of Ag in matildite . 2 Ag + MgCl2 → 2…

Q: If 1.80 g Zn is allowed to react with 1.68 g of CUSO4 according to equation CuSO4 (aq) + Zn(s) →…

A:

Q: The insecticide dieldrin contains carbon, hydrogen,oxygen, and chlorine. When burned in an excess…

A: Given, a 1.510 g sample of insecticide dieldrin on burning yields 2.094 g CO2 and 0.286 g H2O.…

Q: Mass of crucible and cover is 43.92 g. The mass of crucible, cover, and magnesium is 44.62g. Mass of…

A: Empirical formula is the chemical formula  which represents the simple ratio of atoms of constituent…

Q: What mass of HCl, in grams, is required to react with 0.590 g of Al(OH); ? Al(OH)3 (s) + 3HC1(aq) →…

A: Al(OH)3  + 3HCl  ----------------> AlCl3   +  3H2O Molar mass of Al(OH)3 = 78 g/mol molar mass of…

Q: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

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Q: In this quantity of gold? [4.5 9. 64,456 g/mol) in A 55kg woman has 7.5 x 10-3 mol of hemoglobin…

A: The given data contains,  =7.5 ×10-3According to mole concept,1 mole of compound contains 6.022…

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

A: The molar mass of Fe is 55.85 g/mol. The molar mass of Al is 26.98 g/mol. The molar mass of Fe2O3 is…

Q: What is the maximum mass of iron, in grams, that can be obtained from 651 g of iron(III) oxide?

A: Molar mass of any substance is the mass of 1 mole of that substance. If the molar mass of an atom is…

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

A:

Q: The density of water of a lake is 1.25 g mL-1 and one kg of this water contains 92 g of Na+ ions.…

A:

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: One molecule of a compound weighs 2.03 × 10‒22g. What is its molar mass?

A: Molar mass is the mass of 1 mole of the substance or 6.022×10²³ particles, expressed in grams.

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

A: Given: Mass of Cu produced = 500 g. The moles of Cu produced = MassAtomic mass = 50063.55 = 7.868…

Q: Chromium metal reacts with oxygen to give chromium(III) oxide, Cr2 03. What mass (in grams) of Cr2O3…

A: Given data :  Mass of chromium metal = 0.196 g

Q: What is the mass in milligrams of? (a) 0.367 mol of HNO3? (b) 245 mmol of MgO? (c) 12.5 mol of…

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Q: Table salt, NaCl(s),NaCl(s), and sugar, C12H22O11(s),C12H22O11(s), are accidentally mixed. A 5.50…

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Q: If 5.15 grams of copper metal react with 14.1 grams of silver nitrate, what is the mass of silver,…

A: This question can be solved by using the number of moles of each of the reactants and thereby…

Q: Table salt, NaCl(s), and sugar, C1,H„O(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced chemical equation for combustion of sucrose: C12H22O11 + 12O2 ------> 12CO2 + 11 H2O…

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: 32.854 cm³ of solid magnesium reacts with 7.42760 x 1023 carbon dioxide gas molecules, to make solid…

A: Volume of Mg = 32.854 cm3  Number of molecules of CO2 = 7.42760 × 1023 molecule

Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced…

A: Given information,        1.40 × 103 g N24.60 × 102 g H2

Q: In a combination reaction, 1.60 g of lithium is mixed with 6.75 g of oxygen.   After the reaction…

A: Number of moles = Given massMolar mass

Q: Sodium metal and water react to form hydrogen and sodium hydroxide. If 1.99 g of sodium react with…

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Q: If 2.332 g of a sample containing a mixture of CuO and CuCO3 are heated, the final weight of the…

A: CuCO3 on heating decomposes to form CuO and CO2 CuCO3 (s) →heat CuO (s) + CO2 (g) 123.55 g…

Q: In a chemical reaction, sulfur goes through a combustion reaction and produces sulfur trioxide as a…

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Q: You have calculated the mass of Copper Sulfate in the original mixture to be 0.255 g and the mass of…

A: the mass percent of copper sulfate and sodium chloride has to be given,

Q: millan Lea Table salt, NaCI(s), and sugar, C,H„0,(s), are accidentally mixed. A 5.00 g sample is…

A: Sample taken = 5.00 g  CO2 produced = 1.60 g

Q: Consider the following reaction: 2 ICl3(g)   +   3 H2O(l)   →   ICl(g)   +   HIO3(aq)   +   5…

A: Limiting reagent is defined as the reagent which is completely consumed in the reaction and limits…

Q: When an identical 4.008 g of sulfur is burned completely in a restricted amount of air, it again…

A: Given,Sulfur is burned completely in a restricted amount of air, it again combines with oxygen to…

Q: A mixture of potassium chloride and potassium bromide weighing 3.562 g is heated with chlorine,…

A:

Q: A mixture contains only NaCl and Fe(NO3)3 . A 0.456-g sample of the mixture is dissolved in water,…

A:

Q: A chemist has a sample of an unknown metal.  When the chemist reacts this metal with Cl2, the water…

A: Given, Mass of Beaker and Unknown Metal Solid = 138.31 g. Mass of Beaker, Unknown Metal Solid, and…

Q: An experiment in the lab requires 0.03 g of sodium chloride, which is a substance that is safe for…

A: I can dispose the exess NaCl by throwing it in to the basin .

Q: You combine 1.25 g of germanium, Ge, with excess chlorine, Cl2 . The mass of product, GexCly , is…

A: The mass of the product GezCly is given that 3.69 g. The mass of the gallium (Ge) in product is…

Q: 4.84. Aluminum chloride (AICI3) is used as a catalyst in the production of polyisobutylene, which is…

A: Given, Mass of Aluminium (Al) metal reacts = 2.70 g Mass of chlorine (Cl2) gas reacts = 7.10 g…

Q: 2 Al(s) +3 Br2 (4)- - Alz Bre (s) What mass of Br2, in grams, is required for complete reaction with…

A: 2Al (s)     +          3Br2 (l)…

Q: What is the mass in grams of 6.57 × 10²⁵ molecules of N₂? 7.57 × 10²⁵ molecules of O₂?

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Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO3 and…

A: Mass Percentage of NO3 in the mixture is 73.76%. it implies that 100 g of mixture contains 73.76 g…

Q: The black powder used to propel each firework into the sky made up of 75% by mass potassium nitrate,…

A: Black powder contains 75% by mass potassium nitrate, 15% by mass charcoal, and 10% by mass sulfur.

Q: When 4.008 g of sulfur is burned completely in abundant air, it combines with oxygen to form a…

A: The balanced chemical equation between sulphur and oxygen is given by

Q: Calculate the mass in grams of 3.00 x 104 molecules of methanol. The chemical formula for methanol…

A: We know that:Molar mass of CH3OH=mass of carbon+4mass of hydrogen+mass of oxygen.…

Q: solution containing 51.0 grams of hydrochloric acid, HCl. The reaction yields zinc chloride, ZnCl2,…

A: First convert mass into mole by diving molar mass respectively Then Calculate limiting reagent by…

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: In an experiment to determine the empirical formula of magnesium chloride, 0.50 g of magnesium…

A: Given : mass of magnesium ribbon = 0.50 gram. To find : empirical formula of magnesium chloride.…

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO, and…

A:

Q: Iron metal reacts with chlorine gas giving iron(III) chloride. The balanced chemical equation for…

A: Given, mass of iron = 32.0 g we know, molar mass of iron(Fe) = 55.845 g/mol => moles of iron =…

Q: Table salt, NaCl(s), and sugar, C,,H„0(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced Combustion reaction of sugar:  C12H22O11 + 12O2 .....> 12CO2 + 11H2O Mass of sample =…

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: One molecule of a compound weighs 2.93 x 10-22 g. The molar mass of this compound is:

A: 1 mole = 6.0224 × 1023 molecules Molar mass = 6.0224 × 1023 × Molecular mass

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".