CaCl2 + K2CO3 ---> CaCO3 + 2KCl
mass |
|
CaCl2 |
2.0g |
K2CO3 |
2.5g |
Filter paper |
2.0g |
Watch glass |
31.9g |
precipitate |
1.8g |
1. calculate the theoretical concentration of calcium chloride?
2. Create a bar graph comparing the theoretical to actual percent concentrations of calcium chloride in the solution. Then calculate percent error?
CaCl2 + K2CO3 ---> CaCO3 + 2KCl mass CaCl2 2.0g K2CO3 2.5g Filter paper 2.0g Watch glass 31.9g precipitate 1.8g 1. calculate the theoretical concentration of...
CaCl2: 2.0g K2Co3: 2.5g Filter paper: 2.2g Watch Glass: 33.2g Precipitate: 1.8g 24 Hour CaCl2: 3.5g Calculations needed Theoretical yield (CaCO3): Actual yield (CaCO3): Percent yield: Moles of Ca present in original solution, based on actual yield: Mass of CaCl2 present in original solution, based on actual yield: Analyze the data and determine the actual concentration of calcium chloride in the solution. Show all calculations and report in % wt/v concentration. Determine the mass of water which became associated with...
Table 9: Mass Data Item Calcium Chloride (CaCl2) Sodium Carbonate (Na,CO3) Filter Paper Caco,(Experimental Yield) Weight of filter paper and CaCO3=3.9 Mass (6) 2.0 2.5 2.2 3.9-2.2=1.7 Experimental Observations: Insert Photo of precipitate: POST-LAB QUESTIONS (Show your work!) 1. Would there be any effect on an experiment if tap water containing calcium ions is used instead of deionized water to dissolve reactants? Explain your answer. 2. Balance the following chemical reaction. __Na2CO3 + _CaCl2 (aa) — CaCO3(s+_ Nac.(a) 3. What...
I just need help understanding the steps to get the
theoretical yeild and percent yield of CaCO3. using the given
information.
H.Y. & S. D. Precipitating Calcium Carbonate CHMI21 General Chemistry Lab 1 • Treatment of Data: 14) mole amount of Na CO, 15) mole amount of CaCl 16) limiting reagent .00832 00976 NonCO₃ .00735 .832 .au 112.98 mole amount of CaCO, 17) 18) 19) 20) Theoretical Yield (g) of Cacos Actual Yield (g) of Caco, Percent Yield (%) Calculations...
Please help!! with question (18
,19, 20 )
the data is coming directly from
professor and i think she made a mistake because after I work out
problem I get theoritcal yeild of 0.850 grams
CaCO3 but the experiment actual yield is 8.322 grams (work out
question 12 )
Carbonate LI General Chemistry Lab I H.Y. & S.D. ame ata Sheet Section Date • Precipitating Cacos 1) Volume of Na2CO3, mL 8.22mL or 0.00824 2) Molarity of Na2CO3 solution, mol/L...
DATA ANALYSIS Part 1 - Precipitation, Filtration, and Drying of Calcium Carbonate 1. Write a balanced chemical equation for the reaction between calcium chloride and potassium carbonate. K2CO3 (aq) + CaCl2 (aq) > CaCO3 (s) + 2 KCl (aq). 2. Using stoichiometry, calculate the limiting reactant and the theoretical yield (the mass of Caco, product) for the reaction. 3. What is the actual yield of Cacox(s) formed from your experiment? Show your work. 4. Determine the percent yield of the...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
yes, which the data for the experiment is given in the
pictures
Problem #1 Use this data to calculate Ksp of Ca(OH)2. The Ca(OH) used was 15.0 ml, titrated with 0.05M HCI DATA TABLE: TITRATION OF THE SUPERNATANT LIQUID Trial 1 Trial 2 Data Volume of CaOH, solution, mL (supernatant liquid) Initial buret reading, mL Final buret reading, mL Volume of HCl required for titration, mL Equivalence point (mL) Average Kop Problem #2 R PPPPPP LABORATORY REPORT YOU MUST SHOW...