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B. Percentage of NaHCO3 in an unknown Mixture UNKNOWN # 8 33,20g 31.48 134 34027 31,5388...
B. Percentage of NaHCO3 in an Unknown Mixture UNKNOWN # 134 mass of test tube +...
B. Percentage of NaHCO3 in an Unknown Mixture UNKNOWN # 134 mass of test tube + unknown mixture (before heating) 33,20 34,027 31.48 mass of test tube 31,538 mass of unknown mixture 32,6912 33.283 mass of test tube + residue (after heating) RECYCLE Chemical Waste mass of H2CO3 (H2O + CO2) 8 (before heating - after heating) Show the calculation for the mass of NaHCO3 in the unknown mixture for trial 1 (see Example Exercise 14.2). mass of NaHCO3 g...
EXPERIMENT 14 NAME DATE SECTION DATA TABLE g A. Percent Yield of Na2CO3 from Baking Soda...
EXPERIMENT 14 NAME DATE SECTION DATA TABLE g A. Percent Yield of Na2CO3 from Baking Soda mass of test tube + NaHCO3 32,443 32,126 (before heating) mass of test tube 31.300 g 301861 mass of NaHCO3 mass of test tube + Na2CO3 (after heating) mass of Na2CO3 (actual yield) (after heating - test tube) Show the calculation for theoretical yield of Na2CO3 for trial 1 (see Example Exercise 14.1). 22.017 31.66 RECU Chen Wa g g g mass of Na2CO3...
DATA TABLE Trial# nal#2 A. Percent Yield of Na2C03 from Baking Soda 21.40 2!. 38 g...
DATA TABLE Trial# nal#2 A. Percent Yield of Na2C03 from Baking Soda 21.40 2!. 38 g mass of test tube + NaHCO3 g (before heating) mass of test tube 19.55 9.55 gg mass of NaHCO3 1.85 1-83 ge 20.55 20. 04 mass of test tube + Na2CO3 (after heating) 1.09 mass of Na2CO3 (actual yield) g Show the calculation for theoretical yield of Na2CO3 for trial. 1 (see Example Exercise 1) mass of Na2CO3 (theoretical yield) g Show the calculation...
6. A student collects the following data when decomposing a sample of baking soda, NaHCO3. Find...
6. A student collects the following data when decomposing a sample of baking soda, NaHCO3. Find the theoretical and percent yield of sodium carbonate. Mass of test tube + NaHCO, 19.151g Mass of test tube 18.002g Mass of test tube + Na2CO; 18.722g a. Mass of NaHCO,: b. Mass of Na2CO, (actual yield): c. Theoretical yield of Na-C0, and percent yield Theoretical yield: Percent yield: 7. A student collects the following data when decomposing an unknown mixture containing baking soda,...
Narne Grizzk. Ashelve REPORT SHEET: locker Number_50__Dato 26119 Experiment 9 Analysis of a KCIO,-KCI Mixture Unknown...
Narne Grizzk. Ashelve REPORT SHEET: locker Number_50__Dato 26119 Experiment 9 Analysis of a KCIO,-KCI Mixture Unknown number 03 Trial 2 is to be performed if Trial 1 is unsatisfactory. Remember, units must be used. Trial I Trial II Mass of test tube + Mno, + unknown. 186.84 First Mass of test tube + MnO 185.83 Mass of test tube + Mno, + glass wool (optional) Mass of unknown 1.09 'Mass of test tube + MnO, + residue... ...after first heating...
Experiment 9- Decomposition of Baking Soda A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O...
Experiment 9- Decomposition of Baking Soda
A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O +
CO2)?
B. mass of NaHCO3 in unknown mixture?
C. mass of NaHCO3 in unknown mixture?
D. mass of KCL in unknown mixture?
CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....
8. A 0.700-g unknown mixture with CaCl2 reacts with aqueous sodium phosphate to give 0.425 8...
8. A 0.700-g unknown mixture with CaCl2 reacts with aqueous sodium phosphate to give 0.425 8 Ca3(PO4)2. Refer to Example Exercise 15.2 and show the calculation for the percentage CaCl2 in the unknown mixture. DUTY in modo talentos Stan solo longo 9. What safety precautions must be observed in this experiment?
calculate all required B. Percentage of potassium chlorate in a mixture (potassium chlorate+ KCI) IL Mass...
calculate all required
B. Percentage of potassium chlorate in a mixture (potassium chlorate+ KCI) IL Mass of test tube + MnO2 (catalyst, m;)-.13. 1w 3 II Mass of tube + MnO2 +mixture (before heating, ma) =..55.6.39. III Mass of tube + MnO2 + mixture (after heating, m) . .. M.Ami 16/o6/20r 2KCIO3+ (KCI) Heat Ma 2KCI+(KCI)+302 IV Mass of mixture m2- m...8.15.. ..g V. Mass of oxygen m2-m3=..A.2ol mass of oxygen Molecular weight of 0z Moles of oxygen VI. 32...
i have no idea how to do this... 192 EQUIPMENT and CHEMICALS • wire gauze •...
i have no idea how to do this...
192 EQUIPMENT and CHEMICALS • wire gauze • 250-ml beaker - watchglass • alum, KAl(SO4)2-12H20 • unknown hydrate samples S PROCEDURE A. Percentage of Water in Alum Hydrate 1. Weigh a clean, dry, 250-ml beaker covered with a watch glass. Add about 0.8-1.2 g of alum hydrate into the beaker, and reweigh accurately. 2. Support the beaker and watchglass on a ring stand using a wire gauze (Figure 1). Heat the hydrate...
129 Seveh dn 133 Name Locker Number Dete Peme pri t REPORT SHEET Experiment 9 Analysls...
129 Seveh dn 133 Name Locker Number Dete Peme pri t REPORT SHEET Experiment 9 Analysls of a KCIO,-KCI Mbture Unknown number 14 Trial 2 is to be performed if Trial 1 is unsatisfactory. Rame mber, units must be used. Trial I Trial I1 32.2124 20.129% Mass of test tube + MnO, + unknown. Mass of test tube + MnO Mass of test tube + MnO, + glass wool (optional) Mass of unknown Mass of test tube + MaO, +...
B. Percentage of NaHCO3 in an Unknown Mixture UNKNOWN # 134 mass of test tube + unknown mixture (before heating) 33,20 34,027 31.48 mass of test tube 31,538 mass of unknown mixture 32,6912 33.283 mass of test tube + residue (after heating) RECYCLE Chemical Waste mass of H2CO3 (H2O + CO2) 8 (before heating - after heating) Show the calculation for the mass of NaHCO3 in the unknown mixture for trial 1 (see Example Exercise 14.2). mass of NaHCO3 g...
EXPERIMENT 14 NAME DATE SECTION DATA TABLE g A. Percent Yield of Na2CO3 from Baking Soda mass of test tube + NaHCO3 32,443 32,126 (before heating) mass of test tube 31.300 g 301861 mass of NaHCO3 mass of test tube + Na2CO3 (after heating) mass of Na2CO3 (actual yield) (after heating - test tube) Show the calculation for theoretical yield of Na2CO3 for trial 1 (see Example Exercise 14.1). 22.017 31.66 RECU Chen Wa g g g mass of Na2CO3...
DATA TABLE Trial# nal#2 A. Percent Yield of Na2C03 from Baking Soda 21.40 2!. 38 g mass of test tube + NaHCO3 g (before heating) mass of test tube 19.55 9.55 gg mass of NaHCO3 1.85 1-83 ge 20.55 20. 04 mass of test tube + Na2CO3 (after heating) 1.09 mass of Na2CO3 (actual yield) g Show the calculation for theoretical yield of Na2CO3 for trial. 1 (see Example Exercise 1) mass of Na2CO3 (theoretical yield) g Show the calculation...
6. A student collects the following data when decomposing a sample of baking soda, NaHCO3. Find the theoretical and percent yield of sodium carbonate. Mass of test tube + NaHCO, 19.151g Mass of test tube 18.002g Mass of test tube + Na2CO; 18.722g a. Mass of NaHCO,: b. Mass of Na2CO, (actual yield): c. Theoretical yield of Na-C0, and percent yield Theoretical yield: Percent yield: 7. A student collects the following data when decomposing an unknown mixture containing baking soda,...
Narne Grizzk. Ashelve REPORT SHEET: locker Number_50__Dato 26119 Experiment 9 Analysis of a KCIO,-KCI Mixture Unknown number 03 Trial 2 is to be performed if Trial 1 is unsatisfactory. Remember, units must be used. Trial I Trial II Mass of test tube + Mno, + unknown. 186.84 First Mass of test tube + MnO 185.83 Mass of test tube + Mno, + glass wool (optional) Mass of unknown 1.09 'Mass of test tube + MnO, + residue... ...after first heating...
Experiment 9- Decomposition of Baking Soda
A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O +
CO2)?
B. mass of NaHCO3 in unknown mixture?
C. mass of NaHCO3 in unknown mixture?
D. mass of KCL in unknown mixture?
CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....
8. A 0.700-g unknown mixture with CaCl2 reacts with aqueous sodium phosphate to give 0.425 8 Ca3(PO4)2. Refer to Example Exercise 15.2 and show the calculation for the percentage CaCl2 in the unknown mixture. DUTY in modo talentos Stan solo longo 9. What safety precautions must be observed in this experiment?
calculate all required
B. Percentage of potassium chlorate in a mixture (potassium chlorate+ KCI) IL Mass of test tube + MnO2 (catalyst, m;)-.13. 1w 3 II Mass of tube + MnO2 +mixture (before heating, ma) =..55.6.39. III Mass of tube + MnO2 + mixture (after heating, m) . .. M.Ami 16/o6/20r 2KCIO3+ (KCI) Heat Ma 2KCI+(KCI)+302 IV Mass of mixture m2- m...8.15.. ..g V. Mass of oxygen m2-m3=..A.2ol mass of oxygen Molecular weight of 0z Moles of oxygen VI. 32...
i have no idea how to do this...
192 EQUIPMENT and CHEMICALS • wire gauze • 250-ml beaker - watchglass • alum, KAl(SO4)2-12H20 • unknown hydrate samples S PROCEDURE A. Percentage of Water in Alum Hydrate 1. Weigh a clean, dry, 250-ml beaker covered with a watch glass. Add about 0.8-1.2 g of alum hydrate into the beaker, and reweigh accurately. 2. Support the beaker and watchglass on a ring stand using a wire gauze (Figure 1). Heat the hydrate...
129 Seveh dn 133 Name Locker Number Dete Peme pri t REPORT SHEET Experiment 9 Analysls of a KCIO,-KCI Mbture Unknown number 14 Trial 2 is to be performed if Trial 1 is unsatisfactory. Rame mber, units must be used. Trial I Trial I1 32.2124 20.129% Mass of test tube + MnO, + unknown. Mass of test tube + MnO Mass of test tube + MnO, + glass wool (optional) Mass of unknown Mass of test tube + MaO, +...
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