Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
B. Percentage of NaHCO3 in an Unknown Mixture UNKNOWN # 134 mass of test tube +...
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 # 8 33,20g 31.48 134 34027 31,5388 32.69) 33283 8 mass of test tube + unknown mixture (before heating) mass of test tube mass of unknown mixture mass of test tube + residue (after heating) mass of H2CO3 (H2O + CO2) (before heating - after heating) Show the calculation for the mass of NaHCO3 in the unknown mixture for trial 1 (see Example Exercise 14.2). g 8 용 g mass of...
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,...
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...
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...
You need to weigh your own large Pyrex test tube and know the empty mass, mass...
You need to weigh your own large Pyrex test tube and know the empty mass, mass with KCIO3 mixture bet heating; mass with KCIO, mixture and catalyst and mass of all of the above after heating. To weigh the test tube, place it in an empty beaker to keep it upright. You may tare the weight of the bea you need to know the weight of the test tube for your calculations. Procedures: Weigh your clean, dry empty Pyrex test...
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...
Did I do the math right with the data I collected? Or is trial 2 supposed...
Did I do the math right with the data I collected? Or
is trial 2 supposed to be negative?
Analysis of Satwater UNKNOWN # D. Concentration of Sodium Chloride in Saltwater mL La mL. volume of saltwater solution 83.6708 4.922 mass of evaporating dish + solution (before heating) 22. ldA& 44.995 2.923 41.224 mass of evaporating dish mass of saltwater solution 77.8618 mass of evaporating dish + NaCl solute (after heating) 0.1978 3.7 RECYCLE Chemical Waste mass of NaCI solute...
Questions 1-4 Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker,...
Questions 1-4
Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker, test tube, KCIO3 KCI d. weight of beaker, test tube, KCIO3 KCI. Mno2 e. weight of KCIO3 KCl sample (c-b) After reaction: f. volume of oxygen collected at laboratory temperature and pressure -22.3% 246.3 n (determined by the amount of water expelled from the flask g. temperature of the oxygen h. water vapor pressure at the measured temperature (table: Handbook of Chemistry and Physics)...
B. Percentage of NaHCO3 in an unknown Mixture UNKNOWN # 8 33,20g 31.48 134 34027 31,5388 32.69) 33283 8 mass of test tube + unknown mixture (before heating) mass of test tube mass of unknown mixture mass of test tube + residue (after heating) mass of H2CO3 (H2O + CO2) (before heating - after heating) Show the calculation for the mass of NaHCO3 in the unknown mixture for trial 1 (see Example Exercise 14.2). g 8 용 g mass of...
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,...
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...
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...
You need to weigh your own large Pyrex test tube and know the empty mass, mass with KCIO3 mixture bet heating; mass with KCIO, mixture and catalyst and mass of all of the above after heating. To weigh the test tube, place it in an empty beaker to keep it upright. You may tare the weight of the bea you need to know the weight of the test tube for your calculations. Procedures: Weigh your clean, dry empty Pyrex test...
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...
Did I do the math right with the data I collected? Or
is trial 2 supposed to be negative?
Analysis of Satwater UNKNOWN # D. Concentration of Sodium Chloride in Saltwater mL La mL. volume of saltwater solution 83.6708 4.922 mass of evaporating dish + solution (before heating) 22. ldA& 44.995 2.923 41.224 mass of evaporating dish mass of saltwater solution 77.8618 mass of evaporating dish + NaCl solute (after heating) 0.1978 3.7 RECYCLE Chemical Waste mass of NaCI solute...
Questions 1-4
Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker, test tube, KCIO3 KCI d. weight of beaker, test tube, KCIO3 KCI. Mno2 e. weight of KCIO3 KCl sample (c-b) After reaction: f. volume of oxygen collected at laboratory temperature and pressure -22.3% 246.3 n (determined by the amount of water expelled from the flask g. temperature of the oxygen h. water vapor pressure at the measured temperature (table: Handbook of Chemistry and Physics)...
Most questions answered within 3 hours.
-
A person pulls on a container on a horizontal frictionless
surface with a force of 110...
asked 1 minute ago -
A complex number is a number of the form a + bi, where a and b...
asked 51 seconds ago -
30 people are selected randomly from a certain town.
If their mean age is 32.2 and...
asked 10 minutes ago -
Consider the following program that reads a number of
nonnegative integers into an array and prints...
asked 7 minutes ago -
A lean manufacturing system basically removes all waste,
including inventory, as much as possible. An ideal...
asked 15 minutes ago -
Write a JAVA program to sort a given array of integers (1
Dimensional) in ascending order...
asked 26 minutes ago -
The table below shows the number of deaths in the U.S. in a year
due to...
asked 46 minutes ago -
The solubility of magnesium phosphate is 2.27 × 10-3 g/1.0 L of
solution. What is the...
asked 1 hour ago -
Two tugboats pull a disabled supertanker. Each tug exerts a
constant force of 1.20×106 N ,...
asked 57 minutes ago -
In the following concepts of economics provide a
discussion of the meaning as well as the...
asked 32 minutes ago -
Suppose we now care about the long run decisions of a firm that
has a production...
asked 46 minutes ago -
Outline the major trends shaping franchising
asked 1 hour ago