Chromium carbonate : Cr2(CO3)3
molar mass : 2* 52 amu + 3* ( 12 + 3*16) = 284 g/mol
moles of Cr2(CO3)3: 179.3 g/ 284 g/mol = 0.6313 moles
moler ratio Cr2(CO3)3: C = 1 : 9
Thus moles of Carbon : 0.6313 mole Cr2(CO3)3* 9 mole C / Cr2(CO3)3 = 5.682 moles
How many moles of carbon are in 179.3 g of Cr2(CO3)3? a) What is the given...
(a) How many moles of ammonium ions are in 0.777 g of ammonium carbonate? (b) What is the mass, in grams, of 0.0421 mol of iron(III) phosphate? (c) What is the mass, in grams, of 5.12 1023 molecules of aspirin, C9H8O4? (d) What is the molar mass of a particular compound if 0.070 mol weighs 6.46 g?
(a) How many moles of ammonium ions are in 0.345 g of ammonium carbonate? (b) What is the mass, in grams, of 0.0499 mol of iron(III) phosphate? (c) What is the mass, in grams, of 4.92 1023 molecules of aspirin, C9H8O4? (d) What is the molar mass of a particular compound if 0.088 mol weighs 5.44 g?
Show your work, including units, for the following series of calculations: a. How many moles of Al are in 1.25 g of Al? b. For the synthesis of alum you will be performing in lab, what is the molar ratio of Al to alum? In other words, how many moles of alum are produced from 1 mole of Al? c. Starting with 1.25 g of Al, what is the theoretical amount of alum (in g) that can be produced if...
Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2 PO (a) How many moles of P,0, are formed from 3.4 moles of O,? SHOW the math below (b) How many moles of P are needed to react with 30,1 moles of O,? SHOW the math below. 5. Aluminum reacts with copper(ll) chloride to make aluminum chloride and copper (a) Write the balanced equation (b) Given 6 moles of Cuch, how many moles of...
POGIL-Stoichiometry How do chemists use balanced chemical equations? got bit D 23 mosquitoes? 10 He got Mol-aria Why? Chemists use balanced chemical equations as a basis to calculate how much reactant is needed or product is formed in a reaction. This is called Stoichiometry- (stoi-key-ah-meh-tree) Another way of looking at it is using the mole ratio from the balanced equation and information about one compound in the reaction to determine information about another compound in the equation. A mole ratio...
What is the mass, in grams, of 1.30 molmol of water, H2OH2O? Learning Goal: Be able to convert to mass from a given number of moles. Completing problems such as this is critical for ensuring your success in chemistry. If you would like to get a head start (and we strongly suggest you do if you want to do well in the course) we have provided you with help to learn this concept in the hints. Hints for this problem...
CHEM 110 Online Lab Instructions for Exp 6 Molar Masses as Conversion Factors Part 1: The Chemical Reaction LET'S WATCH THE BALLOON INFLATE Let us do a simple "chemical reaction and see what happens when these two common household chemicals are put together: vinegar (HC,H,O2 -aqueous acetic acid solution) and baking soda (NaHCO, --sodium bicarbonate). Vinegar is a solution of acetic acid and water. Vinegar is used in salad dressings, to dye eggs, and in other cooking uses. Baking soda...
plz help asap Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Column A Enter the measured masses of sodium carbonate from data page #1 в Using stoichiometry, calculate the theoretical number of moles of CO2 that can be produced from each reactant entry. C Using the ideal gas law, measured volume, and temperature, calculate the theoretical pressure of CO2(g) that can be produced from the theoretical moles of CO2(8) D Actual measured pressures of...
i uploaded everything that was given. Where would I find the experiemental values? Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...