What is the percent of carbon in the pesticide DDT (C14H9Cl5) ? The molar mass of C14H9Cl5 is 354.5 g/mol. A. 47.4% B. 52.1 % C. 61.4% D. 50.0%

Q: hat mass of oxygen is consumed by the complete combustion of 7.0 grams of ethylene, C2H4? Molar…

A: Given, mass of ethylene , C2H4 = 7.0 g            molar mass of C2H4 = 28.05 g/mol Now, moles of…

Q: Octane burns according to the following equation: 2C8H18+25O2→16CO2+18H2O Calculate the grams of…

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Q: Space crafts and submarines use lithium hydroxide to capture exhaled carbon dioxide based on the…

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Q: 18. What is the percentage by mass of carbon in the insecticide Lindane, C6H6C16? * 24.7 % 1.00 %…

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Q: The molar mass of calcium hydroxide, Ca(OH)2, is O 54.02 g/mole O 58.09 g/mole O 114.2 g/mole 74.10…

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Q: USING the palalicEu equatiOTT 1N2 3H2 2NH3 Determine the number of moles of NH3 formed from the…

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Q: 1. ) 70.90 g/mol 2 Clzg) 26.98 g/mol + 3 Ale) 133.3 g/mol →2 AICI6) a. Calculate the theoretical…

A: Given data,Mass of Al=15.0gMass of AlCl3 obtained=25.21gMass of V =220gExperimental yield of…

Q: Using the palancea equation. -TON. 1C3H8 502 + --> 3CO2 4H2O Determine the number of moles of CO2…

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Q: How many moles are in 325 g of (NH4)2Cr2O7? Group of answer choices a.    0.732 mole b.    1.37…

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Q: How many moles are contained in each number of grams of table sugar (C 12H 22O 11, molar mass 342.3…

A: Given data molar mass of sugar ( C12H22O11 ) = 342.3 g/mole   mass of sugar part(a) 0.500 g…

Q: An alloy is found to be 41.8% Zn and the rest is Cu. If 15.0g of Cu is added to 45.0g of this alloy,…

A: To calculate percentage of Cu in a Zn-Cu alloy after the addition of fresh Cu to the already…

Q: Consider the following reaction:              2 C2H4 (g)  +  6 O2 (g)  →   4 CO2 (g)  +  4 H2O (g)…

A: Moles of CO2 produced can be calculated by knowing the limiting reagent.

Q: A fertilizer sample contains 9.11 %P2O5 and 11.03% H2O. Calculate the %P.Os on a dry basis? A.…

A: The percentage of P2O5 in the fertilizer sample is = 9.11 % The percentage of water in the…

Q: What is the percent yield of CO2 if the reaction of 10.0 grams of CO with excess O2 produces 12.8…

A: Number of moles of Co= Given mass of CoMolar mass of CoGiven mass of CO= 10.0 gramsMolar mass of…

Q: Organic matter made up 59% of the particulate matter samples analyzed in the 2017 Lake Michigan…

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Q: 1. H₂O 2. LAH HO O₂N 1. H₂, Pd/C, EtOAc 2. HNO2, HCI

A: We have to carry out the below given transformation.

Q: What amount of O2 is needed to produce 4.23 mol of CO2 in the reaction CH4+2O2=CO2+2H2O 1.6.36 mol…

A: The balanced reaction taking place is given as, => CH4 + 2 O2 ------> CO2 + 2 H2O

Q: How many grams of N2 are needed to make 444 g of NBr3 ?  N2   +   3 Br2   →   2 NBr3   +   44.0 kJ…

A: N2 + 3Br2 ---> 2NBr3 + 44.0 KJ Weight of NBr2 = 444 gm Molar mass of NBr3 = 253.719 gm Molar mass…

Q: According to this balanced equation, how many grams of water (H20) form in this reaction? Beo 2HCI…

A: Given, the balanced chemical reaction as follows,BeO+       2HCl→     BeCl2   +       H2O25.01 g…

Q: How many grams of NH3 would be produced by the reaction of 12.0 g of H2?          N2(g)      +…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: What are the balanced chemical equations for the following? 1. CuSO4 & KI 2. CuSO4 & Na3PO4 3. CuSO4…

A: In a balanced chemical equation, the number of atoms of each constituent element is same on both…

Q: What is the mass of CO2 gas (molar mass: 44.01 g/mol) produced from the complete combustion of 4.80…

A: Given: Mass of C3H8 = 4.8 g The molar mass of CO2 = 44.01 g/mol The molar mass of C3H8 = 44.10…

Q: A local water retention pond was found to have elevated levels of mercury concentrated as 14 ng per…

A: Given : Concentration of mercury i.e Hg = 14 ng/L. And volume of water in bond = 1250 m3  Since 1 ng…

Q: CH4 + O2 → CO2 + H2O a. Balance the equation. b. How many moles of CO2 are produced from 10 moles…

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the…

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Q: 22. The combustion of hexane (C,H14), a component of gasoline, is represented by the balanced…

A: A combustion reaction of hexane. Balanced chemical Reaction :-  2C6H12 (l) + 19O2 (g) --> 12CO2…

Q: 9. A mixture of 50 g H₂0 and 30 g of CeHsOH separates into two layers at 62°C. One layer, X₁,…

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Q: Determine the number of grams of Lead(II)Chloride that are produced from the reaction of 15.3g NaCl…

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Q: 29. Consider the following balanced equation: 4NO2 + O2 2N₂O5 How many moles of N₂Os are required to…

A: Balanced chemical equation : 2N2O5 ➡️ 4NO2 + O2  Weight of NO2 formed = 62.7 g Molecular weight of…

Q: How many grams of Mgla are produced by the reaction of 25.0 g of Mg with 25.0 g of l:? *

A: Given: Mass of Mg=25.0 gMass of I2=25.0 g To find: Mass of MgI2 produced

Q: How many grams of H2O are produced if 43.2 g of O2 are consumed in the following reaction? C3H8 + 5…

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Q: ?What mass of Bacl2 is required to react with 10 gm of Fe2(SO4)3 15.43 gm. O 16.11 gm. O 15.72 gm.…

A: Given information: Mass of Fe2(SO4)3 = 10 g

Q: What are the balanced chemical equations for the following? 1. Pb(NO3)2 & Na2CO3 2. KI & AgNO3 3.…

A: The balanced chemical equation of Pb(NO3)2 & Na2CO3 is : Pb(NO3)2 + Na2CO3 → PbCO3 + 2NaNO3

Q: What is the GFM of CO₂(g)? 28.0 g/mol 44.0 g/mol 22.0 g/mol

A: GFM(Gram formula mass) is the mass of 1 mole of compound or also called molar mass.  Consider a…

Q: How many grams of NH3 can be produced by mixing 14 g of N2  with 6.0 g of H2? Given:…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…