9- An unknown compound is composed of C, H, and O. A 0.1005 g sample of this compound is combusted, producing 0.2829 g of CO, and 0.1159 g of H,0 The empirical formula of the compound is ....

Q: A) How many grams of MgI2 is present in a 0.4745 g sample that is 53.21% MgI2 (278.11 g/mol)? B)…

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Q: b) In a second experiment to verify the value of x, the pharmacist heated a 3.752g sample of the…

A: Given, mass of sample of lysine hydrate =3.752 g mass of sample after heating =  3.278 g

Q: Determination of a chemical formula, mass of crucible is 14.9234g, crucible + hydrated sample is…

A: Given  Mass of Crucible = 14.9234  Mass of hydrated sample = 1.6618 gram Mass of crucible + Mass of…

Q: Potassium cyanide reacts with acids to produce hydrogen cyanide gas via the following reaction:…

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Q: A pure gold ring contains 0.0102 mmol (millimol) Au. Howmany gold atoms does it contain?

A: Given: Moles of Au = 0.0102 mmol= 0.0102×10-3 mol To find: The number of gold atoms

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

A: The question is based on the concepts of reaction  Stoichiometry. we know the amount of product…

Q: 0.126 mole of lithium weighs

A: Given,Moles of lithium = 0.126 moleRequired,                  Weight of lithium .

Q: Given the following data: Substance A B Molar mass, g/mol 14 40 Density, g/ml 0.534 1.55 Assume a…

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Q: 9- An unknown compound is composed of C, H, and O. A 0.1005 g sample of this compound is combusted,…

A: 9. Weight of unknown compound burned w = 0.1005 g Weight of CO2 produced = 0.2829 g Weight of H2O…

Q: A stack of 500 sheets of typewriter paper is 1.9 inches thick. The thickness, in inches, of a stack…

A: Number of sheets in a stack = 3.01 × 1023 One mole contains Avogadro’s number of sheets. Therefore,…

Q: 9. Consider the following compound: FeCl, a. What is the name of the compound? ( b. What is the…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: Given the reaction: Sa + F2 --> SF6. How many grams of SF6 will be produced if you start with 551.1…

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Q: 1. Determine the number of moles and the mass (in g) of sodium nitrate, NaN03, required to decompose…

A: Given,

Q: A student performed an experiment to determine the empirical formula of aluminum chloride. In this…

A: (a)Since Al is completely reacted, the mass of Al in the aluminum chloride formed during the…

Q: When 10.000g sample of metal oxide is heated, it releases 0.739 g Oxygen plus a certain mass of…

A: A question based on mole concept that is to be accomplished.

Q: d. How many grams of potassium metal remain after the reaction? How many grams of water remain after…

A: K + H2O ------> KOH + H2   moles     1       1                1       1  Caculate…

Q: 33. There are now about 332,400,000 people in the USA. a. How many moles of people is this? b. If 1…

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Q: A mixture of 134.6 g of Cl, and 29.4 g of P reacts completely to form PCl, and PCl,. Find the mass…

A: Consider the balanced reaction of Cl2 with P to give PCl3 and PCl5 is as follows; Reaction:…

Q: Consider the following reaction for Pentane (C5H12): C5H12 + 8O2 --> 5CO2 + 6H2O If 2.5 moles of…

A: On reaction completion, one of the reactants is always left unconsumed, while the other is totally…

Q: If excess of C2H4 is combined with 122.0 g of Br2, as the following reaction, C2H4(g) + Br2 (l)…

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Q: A) How many grams of Mgl, is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

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Q: Determining the Formula of a Hydrate #1: A 15.67 g sample of a hydrate of magnesium carbonate was…

A: Given :  Mass of sample of a hydrate of magnesium carbonate = 15.67 g Mass of sample after drying it…

Q: in an experiment 7.36g of zinc was heated with 8.45 g of sulfur. assume that these substances react…

A: Zinc reacts with sulfur to form zinc sulfide as follows: Zn + S8 -----> 8ZnS The stoichiometry of…

Q: The proportion of sodium hydroxide in a mixture can be determined by

A: Sodium hydroxide in a mixture can be determined by various ways. Formula of sodium hydroxide is…

Q: grams of Zn(OH), will be formed in

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Q: What mass of KO, produces 235 g of 0,?

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Q: A 52-kg woman has 7.2 x 10 mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: Given: Moles of Hemoglobin=7.2×10-3 Molar mass=64456 g/mol To find: Molecules of hemoglobin in her…

Q: In the chemistry lab stockroom, there is more than enough hydrogen gas for the reaction , but only…

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Q: d. What is your theoretical yield of BeH2 in moles? e. What is your theoretical yield of BeH₂ in…

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Q: A certain compound contains carbon, hydrogen and chlorine only. Complete combustion of 0.425 g of…

A: Given data: Mass of compound = 0.425 g, Mass of water produces = 0.179 g, The compound is 59.19 % by…

Q: A mixture of 200.5 g of Cl, and 43.8 g of P reacts completely to form PCl, and PCI,. Find the mass…

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Q: minutes

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Q: 5 g of hydrated barium chloride is heated in a crucible until the mass of the sample no longer…

A: Given: Mass of hydrated barium chloride = 5 g Mass of sample after heating = 4.26 g The loss of mass…

Q: Explain what the purpose of a coefficient is in a chemical formula

A: We usually balanced a Chemical Reaction equation to satisfy the law of conservation of mass.…

Q: 1. Fill in the blanks with the most appropriate term: A are the tells the story of a chemical…

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

Q: Refer to the picture below. If 15.0 g of Mg and 150.0 g of AgNo₃ are allowed to react, find the 1.…

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Q: 35.0 grams of H2S were reacted with 115.0 g of O2 to produce S02 and H20. The theoretical yield of…

A: Chemical equation is the equation in which the chemical reaction is represented. All the reactant…

Q: The balanced equation for the Haber Process is shown below. In this reaction, nitrogen and hydrogen…

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Q: Mass of crucible and lid:           21.987 grams Mass of crucible, lid and Mg:   23.005 grams Mass…

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Q: A The total mass of the system will be the same because the atoms were only rearranged. The total…

A: A closed system is the one which do not allow any transfer of mass or energy to the surrounding.

Q: The distinctive taste of vanilla arises from an organic compound composed of only carbon, hydrogen,…

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Q: (1) В,На(8) + 30-(в)-эв,0:(s) + зн,0(8) дно --1941 k mol1 (2) 2B(s) +0:(g)>B;O;(s) Дно - -2368 k)…

A: Given Equation No Chemical reaction ∆rH° kJ/mol 1 B2H6 (g)  + 3 O2(g) → B2O3(s) + 3 H2O(g)…

Q: Solid lithium hydroxide is used to remove exhaled carbon dioxide from space vehicles by forming…

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Q: A multi-nutrient fertilizer contains several different nitrogen containing compounds. The fertilizer…

A: The mass percent of a substance is defined as the ratio of the mass of the substance and the mass of…

Q: l,652g 47,7129 Mass of copper chloride, g Mass of empty evaporating dish, g 48.4929 48.4929 Mass of…

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Q: A mixture of 118.6 g of Cl2 and 25.9 g of P reacts completely to form PCl3 and PCl5. Find the mass…

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Q: An automobile runs for 10 minutes and burns 47 g of gasoline.The gasoline combines with oxygen from…

A: To determine the mass of oxygen consumed in the given process.

Q: The combustion of an unknown alkane of unknown amount produces 117.33 g of CO, and 72 g H2O. What is…

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Q: 31. Bal, contains 64.9% I. How many grams of barium are in 26.50g barium iodide (Bal, ?

A: In this question, we want to determine the mass of Ba in grams unit. You can see details Solution…

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".