You determine the empirical formula of a compound to be CH3. In a separate experiment, you determine the molar mass of the compound to be 90.208 g/mol.  What is the molecular formula for this compound?     Question 3  When converting between grams and moles, it is necessary to use Avogadro's number.   Question 3 options:   True   False

Q: What is the mass in grams of 0.76 mol of potassium chloride? Group of answer choices a, 60 b, 99.4…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: 1. In the reaction between aluminum and Fe2O3 to produce iron and aluminum oxide, 108 g of aluminum…

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

Q: The mineral hedyphane has the formula Pb3Ca2(AsO4)3Cl  (m.w = 1154.0 g/mol).  How many moles of…

A: A chemical formula represents the number of elements present in a compound in their relative…

Q: When 0.440 mol of aluminum are allowed to react with an excess of chlorine gas, CI 2, how many moles…

A: The reaction between the aluminium and excess chlorine to produce aluminium chloride is a redox…

Q: Write the balanced equation, then outline the steps necessary to determine the information…

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Q: Chalk is mostly made of calcium carbonate, CaCO3. If it took 48.6 g of chalk to write your name on…

A: Option A will be correct.

Q: CALCULATIONS Answer the following in Question 1-2 involves the same process three different times.…

A: The objective of the first question is to convert the mass of NaHCO3 into moles. The molar mass of…

Q: Canvas Question 30 When 0.6943 g compound containing C, H, and O was subjected to combustion…

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Q: How many hydrogen atoms are present in 3.2 g of NH3?     a)  0.19 atoms   b)  0.56 atoms   c)…

A: Given that:  Mass of NH3 = 3.2 g  We know molar mass of NH3 = 17/gmol Moles = given mass/molar mass

Q: QUESTION 4 Suppose that you weigh out 2.18 grams of salicylic acid to use in your synthesis of…

A: Formula used :  Moles of solute = given mass of solute ÷ molar mass of solute  Percent yield of…

Q: Formula Amount of Molar Mass of Amount of Samples units or molecules mass(g/mol) sample(g) atoms…

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Q: a(s) + 2HCl(aq) --> CaCl2(aq) + H2(g) What is the mass of H2 that can be produced from 35.7 g of…

A: Calcium reacts with hydrochloric acid to form calcium chloride and hydrogen gas. The equation for…

Q: The synthesis of maleic acid anhydride (C„H2O3) can be accomplished by reacting benzene (CHs) and…

A: According to the balanced chemical equation for 100% yield, 2 moles of maleic anhydride requires 2…

Q: Combustion of hydrocarbons like methane CH4 produce two products, water and carbon dioxide CO2.…

A: Complete combustion of hydrocarbon gives water and carbon dioxide .

Q: 9. How many sodium ions are contained in 1.64 g of Na3PO4? The molar mass of Na₂SO3 is 163.94 g/mol.…

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Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

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Q: 2. In the reaction 2 Al + 3 Cl2 ------> 2 AlCl3, 0.50 mol of AlCl3 was obtained when 1.0 mol of Cl2…

A: Since you have asked multiple questions, we will solve the second question for you (first question…

Q: C3Hg(g)+___O2(g)-->3CO2(g)+4H2O(l) How many O atoms are present on the right side of the chemical…

A: The given chemical equation is,  C3H8 (g) + ___O2(g) → 3CO2(g) + 4 H2O(l)

Q: 2. What is the theoretical yield of sodium oxide if you start with 35g of calcium oxide? NaCl + Cao…

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Q: 96. Methane gas (16 g, 1.0 mole) and oxygen gas (96 g, 3.0 moles) are reacted in a sealed container.…

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Q: Cobalt reacts with water according the equation below. When 18.22 grams of cobalt is added to an…

A: The moles of cobalt(III) oxide produced is = 0.0912 mol

Q: The unknown compound is 28.6% C rbon does a 100.0 gram sample of

A: GIVEN   TOTAL MASS = 100 gr UNKNOWN COMPOUND  CONTAINS 28.6% BY MASs 28.6 gr of carb

Q: Question 8 A gas leak was detected in an apartment building and the resulting gas was analyzed. A…

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Q: 20- (please look at the attached images for a speecial periodic table that you may need to use to…

A: The given reaction is  3Je(s) + Fe2O3(s) → 2Fe(s)  + 3JeO(g) On the basic of mole concept,  moles of…

Q: If a sample of HNO3 is found to contain 8.15 - 1020 o atoms how many moles of N atoms are present?…

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Q: .  Balance the chemical equation first before attempting to answer the question.…

A: We will balance the equation first, then using stoichiometric calculations to answer the question.

Q: How many grams of NO2 are needed to make 1.5 g of N2?

A: Given :- mass of N2 = 1.5 g  To calculate :- mass of NO2 (in grams)

Q: Combustion of 8.45 mg of an unknown substance yields 14.0 mg CO2 and 7.08 mg H20. The unknown…

A: We have to calculate the % of each element in substance.

Q: Garlic is an antioxidant known to lower blood pressure and kill bacteria. But for these properties…

A: Given  C  = 44.4 %  H  = 6.21 %  O  = 9.86 % S   = 39.51 % Empirical Formula =?

Q: Lamar measures out 1.697 g of NaCl to add to his pot of boiling water for his pasta. How many moles…

A: Given is mass of NaCl added = 1.697 g molar mass of NaCl = 58.44 g/mol We need to calculate the…

Q: Calculate the mass of 500 atoms of iron (Fe).

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Starting with the partially balanced equation, CH3COOH(1)+?O2(g)→2CO2(g) + 2H₂O(1) what coefficient…

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Q: Lithium reacts with nitrogen to form lithium nitride. 6 Li(s) + N2(g) → 2 Li3N(s) In one experiment…

A: Amount of N2 present after complete reaction is: 0.5 molExplanation:

Q: Use the balanced equation, 2NO+ O₂ 1 2 NO₂, to answer the following questions. Part 1 of 3 Determine…

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Q: A Moving to another question will save this response. Question 7 Consider the following balanced…

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Q: 2Mgs) + + O2lg) > 2MgO) (s) If 6.00 moles of Magnesium Oxide are formed, how many moles of Oxygen…

A: Given  Reaction   2 Mg(s)  + O2(g)   -----> 2 MgO(s) number  of mole of MgO      = 6 mole  Number…