Calculate the mass percent composition of a compound. Show all of your work.
Mass of Mn in KMnO4 =54.9g.
Mass% Mn in KMnO4 = 34.8%.
Calculation in the image.
Calculate the mass percent composition of a compound. Show all of your work. Calculate the mass...
Module Three Assignment Name: Chemical Composition and Calculations Instructions: Write out a linear equation to answer each question 1. How many molecules of oxygen are found in 3.00 moles of oxygen? 2. How many grams are in 5.87x10 molecules of sulfur? 3. How many atoms are found in 4.20 g of magnesium (Me)? 4. How many atoms are found in 3.45 g of CO ? Instructions: Calculate the mass percent composition of a compound. Show all of your work. 5....
Calculate the mass percent composition of O in each compound. A. calcium nitrate Express your answer using four significant figures. B. manganese(II) sulfate Express your answer using four significant figures. please help these are the only questions i have trouble with. but please also explain.
2 ) 1120() 3. Calculate the percent composition of ethane 1,2ethanedithiol (HSCH.CH.. SH)? (Show your work.) 1,2 ethanedithiol Mass percent S Mass percent C Mass percent H
Data Table. Don't forget to include units and show your work for processed data! Raw Data: Initial KMnO, buret reading Final KMnO, buret reading Weight of Fe(NH.)2(SO4)2 Processed Data (show all work for credit): 4.85 ml UL.SIML l ugrams Moles of Fe(NH4)2(50.)zin flask # of electrons donated per Fe(NH4)2(SO4)2 molecule (from balanced half-reaction) Total moles of electrons donated by Fe Total moles of electrons accepted by KMnO4 # of electrons absorbed per KMnO4 (from balanced half-reaction) Moles of KMnO, added...
Show all work for full credit for problems 1-3. 1. Ibuprofen has the mass percent composition: carbon = 75.69%; hydrogen = 8.80% and oxygen 15.51%. Calculate the empirical formula. Answer: Pls answer all Questions thanks 2. How many grams of chlorine are in 22.50g of CF3C13? Answer: 3. Silver chloride, used in silver plating, contains 75.27% silver. Calculate the mass of silver chloride in grams required to make 4.8 g of silver metal. Answer: 4. Predict the products and write...
EU les Determine the percent composition of each element in NH4Br. Show all your work. Answers should be rounded to the nearest percent. cec er alle Format BIU « EQ PDE w
What is an anhydrous compound? Use the following experimental data to calculate the mass percent of water in the hydrate: mass of beaker and watch glass: 125.857 g mass of beaker, watch glass, and hydrate: 127.007 g mass of beaker, watch glass, and anhydrous compound: 126.271 g - Calculate the mass percent of water in alum, KAl(SO)2:12H,0. Show all of your work.
Organic chemistry. please provide a detailed mechanism for these 2 reactions. + Brz (red) (Eq. 3) Br Br 1,2-dibromo compound (colorless) A potassium permanganate (KMnO4) solution can oxidize a double bond at room temperature to form a 1,2-diol with the simultaneous reduction of Mn' in KMnO4 to Mn** in manganese dioxide (MnO2), as shown in Equation 4. A positive test is the disappearance of the purple KMnO4 and the appearance of MnO2 as a muddy brown precipitate. + 2 KMnO4...
Calculate the mass percent composition of carbon in C8H10N4O4. Enter your answer as a number to 1 decimal place.
(a) The percent composition of an unknown compound is 46.23% C, 17.11% O, 26.96% N, and 9.70% H. What is its empirical formula? Show your work. (b) We must do the combustion of what mass of C4H10O(l) to produce a total mass of 73.4 g of product? Combustion is the reaction of a substance with O2(g) to produce CO2(g) and H2O(l).