What is the empirical formula of an compound containing 81.8% C; 18.2% H.   C H Mass of element (in g) (assuming 100 g of compound) 1._81.8_ 2._18.2_ Moles of element 3.______ 4.______ Moles of element/Smallest moles 5.______ 6.______

Q: 31. Calculate the number of moles of the indicated substance present in each of the following…

A:

Q: a. How many moles of carbon tetrachloride, CC14, are present in a sample that contains 6.30 moles of…

A: a. Given: 6.30 moles of chlorine atoms Determination of moles of carbon tetrachloride: One mole of…

Q: A.How many grams of chromium(III) oxide, , are present in 2.46 moles of this compound? grams_____…

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

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: 12. What mass of carbon di a. 0.468 g b. 2.81 g

A: Given reaction,  C6H14 + 13CO2 -------->6CO2 + 7H2O we have to find mass of CO2 produced by 5.50…

Q: a. What is the molar mass of Prevacid? Molar mass = g/mol %3D b. What mass of fluorine is in 0.73…

A:

Q: rtobstodafo I nominoq В. Determination of NaCl 86.096 1. Mass of evaporating dish #2, watch glass,…

A:

Q: What quantity of moles of Care formed upon complete reaction of 2 according to the generic chemical…

A:

Q: What are the coefficients when following chemical equation is correctly balanced. __KMnO4 + __HCl…

A:

Q: 10 How many moles are in 536 g of Ca(OH)2? A) 4.69 moles. B1 7.23 moles C) 74.10 moles DI 14.11…

A: Given compound is calcium hydroxide.The given mass of calcium hydroxide is 536 g.Standard…

Q: If a sample of Ca(OH)2 is found to contain 5.34 mol of OH" ions how many moles of Ca?+ ions are…

A: Given: moles of OH- ions = 5.34 mol

Q: 4. Compare the total mass of the reactants with the total mass of the products: Total Mass of the…

A: Given reaction is,  K2CrO4 (aq) + Pb(NO3)2 (aq) →2KNO3 (aq) + PbCrO4 (s)

Q: 3. It is found a certain sample of a compound contains 23.0g of sodium and 35.5g of chlorine. a.…

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

Q: Convert 32 grams of C₂H₅OH to moles.

A: The given mass of C2H5OH is 32 g. The molar mass of C, H, and O is 12.011 g/mol, 1.008 g/mol, and…

Q: How many moles are in 15 g Li?

A: Recall the following expression of moles           moles=given mass of a compoundin gmolar mass of…

Q: 20.  The number of moles in 112 g of acetylsalicylic acid (aspirin) C9H8O4 is    A. 1.61   B.…

A:

Q: b) Mass of N2 produced when moles of K2O is produced. blank-blank-blank-conversion factor 1 blank -…

A:

Q: How many moles of water is 6.36 x 1022 molecules? No.of representative particles No. of moles = 6.02…

A: Given  Molecules of water = 6.36 x 1022 molecules

Q: 1. a liquid compound was analyzed and i contained 14.5% Carbon and 85.5% Chlorine. What is the…

A:

Q: 18.45 mol ZnCI2 = _______g ZnCI2

A: Data: The number of moles of ZnCl2= 18.45 mol The molar mass of ZnCl2 = 136.286 g/mol To find: Mass…

Q: 9.to convert from moles of A to grams of A you use the ___________ a.Molar Mass b.Mass Ratio c.Mole…

A:

Q: How do you convert the following number of atoms to moles and moles to atoms as needed to get a, b,…

A: we know  that  n=no of molecules or atoms/NA NA = 6.023 ×10 23

Q: a. How many N2 molecules are contained in 2.55 mol of N2? N2 molecules b. How many N atoms are…

A:

Q: 2. fullcoll.instructure.com facebook idea - Google Search Sd Page < 1. mass to mole part 2…

A:

Q: What is the percent by mass of Cl in the compound? d 0 of 2 points earned 2 attempts remaining What…

A:

Q: 8.The number of moles of each compound in a chemical reaction is represented by a ______…

A: Basically the question is asked how to determine the moles in a chemical reaction by seeing it.

Q: Stoichiometry - Equimolar Reactions       a. How many grams of Cl2 is needed to react with 20.0…

A:

Q: 1. A certain compound has a molar mass of 194.19 g/mol. Its percent composition by mass is given…

A: 1.  Given that, a certain compound has a molar mass of 194.19 g/mol. The percent composition ratios…

Q: What is the empirical formula for the compound formed in previous problem?   Cr I Mass of element…

A:

Q: 1. ____N2 + 3H2 ____NH3

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

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".