Calculate the percent composition bymass of each element in NaCIO,.% Na =%% Cl =% O =%

%composition of elements in compound is calculated by mass of element in compound divided by total…

Answered: Calculate the percent composition by…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 2.60E

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Sodium borate decahydrate, Na2B4O710H2O is commonly known as borax. It is used as a deodorizer and mold inhibitor. A sample weighing 15.86 g is heated until a constant mass is obtained indicating that all the water has been evaporated off. (a) What percent, by mass of Na2B4O710H2O is water? (b) What is the mass of the anhydrous sodium borate, Na2B4O7?
How many molecules of C2H4Cl2 can be prepared from 15C2H4 molecules and 8Cl2 molecules?
A chemist prepared a compound that she thought had the formula FeI3. When the compound was analyzed, it contained 18.0% Fe and 82.0% I. Calculate the mass percentage composition expected for FeI3 and compare the result with that found in the analysis. Is this the correct formula of the compound?
A solution is 0.1% by mass calcium chloride. Therefore, 100. g of the solution contains g of calcium chloride.
The notation “(l)” after a substance’s formula indicates it exists in the __________ state.
Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction 2K[Ag(CN)2](aq)+Zn(s)2Ag(s)+Zn(CN)2(aq)+2KCN(aq) (a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of K[Ag(CN)2]? (b) What mass of Zn(CN)2 is produced?
When 9.59 g of a certain vanadium oxide is heated in the presence of hydrogen, and a new oxide of vanadium are formed. This new vanadium oxide has a mass of 8.76 g. When the second vanadium oxide undergoes additional heating in the presence Of hydrogen, 5.38 g of vanadium metal forms, a. Determine the empirical formulas for the two vanadium oxides. b. Write balanced equations for the Steps of the reaction. c. Determine the mass of hydrogen needed to complete the steps of this reaction.
9
The percent by mass of potassium in KOHis The percent by mass of nitrogen in CH5N is %.
c) Mass of KNO3 decomposed when grams of K2O is produced. blank-blank-blank-blank- conversion factor1-blank - conversion factor2-blank - conversion factor3-blank have to this where it say blank one each blank that one belong it. mole of kno3 , mass kno3- mass ration - molar mass- mole o2-moles n2-mass n2- mass k20- moles k2o
sample of waterer (density is 0.998 g/mL) is measured to be 25.7mL. How many mole of water are in this sample (molar mass id 18.02 g/mol
Chalk is composed of calcium carbonate, CaCO3. What is the percent by mass of calcium in calcium carbonate? 40.04% 58.86% 17.64% 12.00%

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Calculate the percent composition by mass of each element in NaCIO,. % Na = % % Cl = % O = %