What is the percent composition by mass of Carbon in a 2.55G sample of propanol,  CH3CH2CH2OH The molar mass of propanol is 60.09 g•mol^-1 A. 20.0% carbon B. 60.0% carbon C. 25.0 % carbon D. 51.0% carbon

Q: 2KHCO3(s) - K2CO3(s) + CO2(g) + H20(1); How many moles of potassium carbonate will be produced if…

A: e option is correct. 2.43 moles

Q: Based on a stoichiometric calculation, a student have produced 8.81 g of CuCl2 in his laboratory…

A: Percent yield = (Actual yield)/Theoretical yield x 100   According to reaction stoichiometry ratio…

Q: Considering the chemical equation below 4 NH3 + 5 O2 -4 NO + 6 H20 Suppose a vessel contains 6.45 g…

A:

Q: The mass of AgCl that will be produced after adding excess AgNO3 to a 0.24g sample containing 50.6%…

A: We have to calculate the mass of AgCl produced.

Q: 2a+4b----> 3c

A: C. 96 (96 moles of C form o complete reaction of 64 moles of A.)

Q: How is stoichiometry used to calculate energy absorbed when a mass of liquid boils? A. Grams liquid…

A: Given, The stoichiometry used to calculate energy absorbed when a mass of liquid boils is :

Q: 10. When copper oxide reacts with hydrogen gas at high temperatures, copper metal and water vapor…

A:

Q: the percent yield of sulphur hexafluoride SF6 in the reaction below is 79%. Calculate the actual…

A: Given: The mass of fluorine is 7.9 g. The percent yield of SF6 is 79 %. Introduction: Write the…

Q: Determine the number of CH;Clz molecules in 25.0 g CH;Clz. a) 0.294 molecules c) 1.28 x 1027…

A: Number of moles of CH2Cl2  is equal to the mass of CH2Cl2 divided by its molar mass.

Q: 17. How many moles are present in 0.0195 g of the amino acid glycine, CH2(NH2)CO;H? A. 2.6 x 10“ mol…

A: Weight of amino acid glycine = 0.0195 g Molecular Mass of amino acid glycine = 75.07 g/mol

Q: How many grams of NBR3 can be made from 2.22 × 102 moles of Br2 ? N2 + 3 Br2 2 NBr3 + 44.0 kJ

A:

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: Determine the mass in grams of HNO3 formed when it react to form 15.5 g HNO3. 3NO2 + H202HNO; + NO…

A:

Q: Determine the mass in grams of HNO3 formed when it react to form 15.5 g HNO3. 3NO2 + H20 ®2HNO; + NO…

A:

Q: A container holds 75.0 g of CuO and 5.00 g of H₂. The following reaction occurs: CuO + H₂ --> Cu +…

A: % yeild        = ( Actual yield ÷ Theoretical yield )×100 % Actual yield is the amount of the…

Q: For the skeletal chemical equation AgNO3(s) → Ag(s) + NO2(g) + O2(g) what is the coefficient of NO2…

A: →AgNO3s→Ags+NO2g+O2g       The balanced equation is →  2) 2AgNO3s→2Ags+2NO2g+O2g

Q: Generic Equation: 2A+4B--------> 3C 96 moles of C are formed upon a completed reaction of 64 mol of…

A: Reaction:  2A+4B--------> 3C we have to find out the percent yield if 6.40 moles of C were…

Q: 16. A metal has the mass of 12.00 g and 5.850 x 1022 atoms. Calculate molar mass of the metal. O…

A:

Q: 2AI + ? H₂SO4 Al₂(SO4)3 + 3H₂ 36. Balance the chemical equation above. Which coefficient must be…

A:

Q: 39. What amount of phosphorus produces 8.80 mol of phosphorus trichloride? P4l6) + 6Cle) →4PC1316)…

A:

Q: What number of molecules (or formula units) are present in 1.18 g of each of the following…

A: Avogadro's number is the number of atoms, molecules, ions, formula units or any particle found in…

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: The mass of AgCl that will be produced after adding excess AGNO3 to a 0.24g sample containing 70.6%…

A: Given data,  Mass of sample = 0.24 g  0.24 g sample contain 70.6% CaCl2

Q: What is the mass of 8.00 molesmoles of magnesium chloride, MgCl2MgCl2? Express your answer with the…

A:

Q: Consider the graph below. Percent NaHCO, reacted 110.0 100.0 90.0 80.0 70.0 60.0 % NaHCO3 reacted vs…

A: A reactant which is completely consumed during the reaction

Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: a. A piece of iron metal with a mass of 42.5g is burned in the presence of oxygen. The resulting…

A:

Q: Suppose

A: Welcome to bartleby! Actual yield = 43.7 g  Theoretical yield = 56.0 g

Q: 1. ) 70.90 g/mol 26.98 g/mol 133.3 g/mol 2 Clzig) + 3 Al(s) 2 AICI3(s) a. Calculate the theoretical…

A: number of moles = mass/molar mass  mass = moles × molar mass  percent yield = {actual…

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: A student determined 2.17 g as a maximu theoretical yield of aspirin (from calculati When he…

A: Which one of the following is correct answer

Q: How many formula units are present in 500.0 g of Substance A. (molar mass 278.2g/mol) O 1.082 x 1024…

A: Given : Mass of substance = 500.0 g And molar mass of substance = 278.2 g/mol.

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: reactant controls the amount of product formed in a chemical reaction? A. excess reactant B. mole…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: In the presence of cyanuric acid, melamine can form crystals that potentially cause renal failure if…

A: To find out the which contains the most nitrogen, we need to find out the the moles of nitrogen in…

Q: The mass % of Al in aluminum sulfate is Molar mass Al =27, S= 32, 0= 16 a. 7.9% b. 45.7% c. 15.8% d.…

A: Given datas ;  Chemical name : Aluminium sulfate  Chemical formula : Al2(SO4)3  Molar mass of Al =…

Q: 14. What is the molar mass of Ca? 16. 078 15. What is the molar mass of H₂SO4? What is the mass of 3…

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

Q: A 1.59 g sample of a silicon-fluorine compound is determined to be 26.99% silicon by mass at 27.0…

A: First calculate the molar mass of compound of silicon fluorine using the ideal gas equation from the…

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".