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…

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Q: 1. CuSO4.5H2O + O2 (heated)_______ + H2O  CUSO2 CuSO4 Cu2SO2 2. FeSO4.7H2O is called _____________.…

A: The given sulfates are hydrated sulfates of transition metals.

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: 250 g of an alloy contains 52 wt% tin (Sn) and 48 wt% lead (Pb). The atomic weight of Sn is 118.7…

A: It is defined as amount of solute ( in grams) present in 100 g of solution is called " mass…

Q: 4. NHẠNO3 → N½0 + H2O a) How many grams of water are produced if 123.0 grams of N20 is produced? b)…

A: 331.70 grams of MgO is produced.

Q: 48. How many molecules of caffeine, C4HSN2O, are there in 18 g of caffeine? a. 1.12 ×10E23 b. 1.05…

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Q: Ticly many How many molecules are 1. How moles are present if you have 100 grams? molecules are…

A: Q.1  To determine the number of moles present in 100 g of TiCl4, we need to use the molar mass of…

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: 3. Calculate the moles of each product you obtained (use the masses you obtained):

A: For the given reaction, Products formed are KNO3 and PbCrO4

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

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

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

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

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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.…

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

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Q: QUESTION 30 The standard for atomic masses is based on O A. a kilogram of oxygen O B. hydrogen, the…

A: as per Q&A guidelines of portal I solve first question because it comes under multiple question…

Q: Determine the number of moles in each of the following. a. 4. 26 g of ammonia, NH3 b. 113.5 g of…

A: Please find your solution below :

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: NH3 + O2 → NO + H2O For every 150 g NH3,   Find the mass of NO produced. _________ Find the mass…

A: Given, mass of NH3 = 150 g  Molar Mass of :: N: 14.01 g/molO: 16 g/molH: 1.01 g/mol

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

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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…

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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…

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Q: 46. How many grams are there in 20 mol of FeSO4 · 7H2O? b. 1.26 g a. 0.07 g c. 4600 g d. 5560 g 47.…

A: Since, we know that ; One mole of a substance is equal to 6.022 × 1023 units of that substance (such…

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

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

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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…

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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: Which of the following contains the least number of moles of Ag? a.30.0 mL 0.55 M AgNO3 b.100 mL…

A: To find: the option with the least number of moles of Ag.

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

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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".