Archive for the ‘lab’ tag
Chloride Laboratory
Chloride Laboratory
does anyone know the answer to this question?AP chemistry test Question?
Four bottles, each containing about 5 grams of finely powdered white substance, are found in a laboratory. Near the bottles are four labels specifying high purity and indicating that the substances are glucose (C6H12O6), sodium chloride (NaCl), aluminum oxide (Al2O3), and zinc sulfate (ZnSO4). Assume that these labels belong to the bottles and that each bottle contains a single substance. Describe the tests you would conduct to determine which label belongs to which bottle. Give the results you would expect for each test.
Al2O3 is insoluble in water, so that sets it apart from the other substances, because they all dissolve.
Glucose has a low melting point, and thus when heated, caramelizes quickly, unlike the salts, which have high melting points.
I would think that ZnSO4, when dissolved in water, would make the solution acidic, whereas NaCl would produce a neutral solution, so use litmus paper to find the acid ic solution. The test would have to be done in this order to get conclusive results.
Also, ZnSO4 can be a hydrated form, so you could dissolve the two salts left over after you've determined which is glucose and which is Al2O3 and then evaporate the water away. Once the water has been evaporated check the weight. Heat them again and check the weight. Repeat until you see that one salt loses mass as you reheat while the other doesn't. the salt tha loses mass is ZnSO4.
| 1 Pound Ammonium Chloride 99 Lab Chemical Many Uses 833 | |
 |
$5.75 Time Remaining: 1d 6h 23m Buy It Now for only: $5.75 |
| CALCIUM CHLORIDE 250 mL chemical bottle lab science school storage chemistry aid | |
 |
$9.99 (1 Bid) Time Remaining: 11h 17m |
| ZINC CHLORIDE Anhydrous 99 1 Lb Ceramic Lab Chemical | |
 |
$9.99 Time Remaining: 7d 9h 3m Buy It Now for only: $9.99 |
| Lithium Chloride Laboratory Chemical Reagent 30 grams | |
 |
$5.50 Time Remaining: 9d 11h 33m Buy It Now for only: $5.50 |
| POTASSIUM CHLORIDE 1 lb Pound Lab Chemical KCl Reagent | |
 |
$2.96 Time Remaining: 9d 16h 9m Buy It Now for only: $2.96 |
| POTASSIUM CHLORIDE 5 lb Pounds Lab Chemical KCl Reagent 99 | |
 |
$7.97 Time Remaining: 9d 16h 10m Buy It Now for only: $7.97 |
| FERRIC CHLORIDE 99 10 Pounds Lab Ceramic Chemical IRON | |
 |
$49.99 Time Remaining: 26d 2h 59m Buy It Now for only: $49.99 |
| POTASSIUM CHLORIDE 1 lb Pound Lab Chemical KCl Reagent 99 pure | |
 |
$2.99 Time Remaining: 9d 16h 9m Buy It Now for only: $2.99 |
| POTASSIUM CHLORIDE 1 lb Pound Lab Chemical KCl 99 pure | |
 |
$2.98 Time Remaining: 9d 16h 9m Buy It Now for only: $2.98 |
| Calcium Chloride Laboratory Chemical Reagent 30 gram | |
 |
$4.25 Time Remaining: 9d 11h 37m Buy It Now for only: $4.25 |
| PalladiumII chloride 99 1g Laboratory Reagent | |
 |
$73.99 Time Remaining: 20d 20h 40m Buy It Now for only: $73.99 |
| 1960s FULL BOX 6 CHROMIUM CHLORIDE PERFECT LABORATORY CHEMISTRY SET CHEMICALS | |
 |
$50.00 Time Remaining: 8d 22h 26m Buy It Now for only: $50.00 |
| AMMONIUM CHLORIDE 250mL chemical bottle lab science school storage chemistry aid | |
 |
$9.99 Time Remaining: 10h 27m |
| Nickel ChlorideNickleous Laboratory Chemical 10 grams | |
 |
$4.50 Time Remaining: 9d 11h 34m Buy It Now for only: $4.50 |
| POTASSIUM CHLORIDE 5 lb Pounds Lab Chemical KCl Reagent | |
 |
$7.96 Time Remaining: 9d 16h 10m Buy It Now for only: $7.96 |
| Berberine chloride 10MG Laboratory Reagent | |
 |
$71.99 Time Remaining: 27d 9m Buy It Now for only: $71.99 |
| POTASSIUM CHLORIDE 5 lb Pounds Lab Chemical KCl Reagent 99 pure | |
 |
$7.99 Time Remaining: 9d 16h 10m Buy It Now for only: $7.99 |
| Potassium Chloride Laboratory Chemical Reagent 30 grams | |
 |
$3.85 Time Remaining: 9d 11h 35m Buy It Now for only: $3.85 |
| POTASSIUM CHLORIDE 1 lb Pound Lab Chemical KCl Reagent 99 | |
 |
$2.97 Time Remaining: 9d 16h 9m Buy It Now for only: $2.97 |
| Strontium Chloride Laboratory Chemical Reagent 10 grams | |
 |
$6.00 Time Remaining: 9d 11h 32m Buy It Now for only: $6.00 |
| 1960s FULL BOX 6 MANGANESE CHLORIDE PERFECT LABORATORY CHEMISTRY SET CHEMICALS | |
 |
$50.00 Time Remaining: 8d 22h 23m Buy It Now for only: $50.00 |
| Magnesium Chloride Laboratory Chemical Reagent 30 grams | |
 |
$5.25 Time Remaining: 9d 11h 36m Buy It Now for only: $5.25 |
| POTASSIUM CHLORIDE 10 lb Pounds Lab Chemical KCl Reagent 99 pure | |
 |
$16.49 Time Remaining: 9d 16h 9m Buy It Now for only: $16.49 |
| Laboratory Chemical Set Chemistry Potassium Strontium Lithium Calcium Chloride | |
 |
$10.00 Time Remaining: 4d 6h 30m Buy It Now for only: $11.00 |
| FERRIC CHLORIDE 99 5 Pounds Lab Ceramic Chemical IRON | |
 |
$34.99 Time Remaining: 26d 2h 59m Buy It Now for only: $34.99 |
| POTASSIUM CHLORIDE 5 lb Pounds Lab Chemical KCl 99 pure | |
 |
$7.98 Time Remaining: 9d 16h 10m Buy It Now for only: $7.98 |
| POTASSIUM CHLORIDE 10 lb Pounds Lab Chemical KCl 99 pure | |
 |
$16.48 Time Remaining: 9d 16h 9m Buy It Now for only: $16.48 |
| 55 lbs Bulk Ammonium Chloride 99 Lab Chemical Many Uses 833 | |
 |
$250.00 Time Remaining: 1d 6h 20m Buy It Now for only: $250.00 |
| Benzethonium chloride 99 250g Laboratory Reagent | |
 |
$137.99 Time Remaining: 27d 8m Buy It Now for only: $137.99 |
| Chemistry Coffee Cup Optima Methlene Chloride Dorm Lab | |
 |
$8.00 Time Remaining: 11d 16h 25m Buy It Now for only: $8.00 |
| POTASSIUM CHLORIDE 20 lb Pounds Lab Chemical KCl 99 pure | |
 |
$30.98 Time Remaining: 9d 16h 10m Buy It Now for only: $30.98 |
| POTASSIUM CHLORIDE 10 lb Pounds Lab Chemical KCl Reagent 99 | |
 |
$16.47 Time Remaining: 9d 16h 9m Buy It Now for only: $16.47 |
| POTASSIUM CHLORIDE 20 lb Pounds Lab Chemical KCl Reagent | |
 |
$30.96 Time Remaining: 9d 16h 10m Buy It Now for only: $30.96 |
| POTASSIUM CHLORIDE 20 lb Pounds Lab Chemical KCl Reagent 99 | |
 |
$30.97 Time Remaining: 9d 16h 10m Buy It Now for only: $30.97 |
| Ammonium Chloride FCC 99 One Pound Lab Chemical | |
 |
$4.99 Time Remaining: 6d 19h 41m Buy It Now for only: $5.99 |
| Succinyl chloride ca 95 100g Laboratory Reagent | |
 |
$184.99 Time Remaining: 4d 17h 20m Buy It Now for only: $184.99 |
| POTASSIUM CHLORIDE 20 lb Pounds Lab Chemical KCl Reagent 99 pure | |
 |
$30.99 Time Remaining: 9d 16h 10m Buy It Now for only: $30.99 |
| POTASSIUM CHLORIDE 10 lb Pounds Lab Chemical KCl Reagent | |
 |
$16.46 Time Remaining: 9d 16h 9m Buy It Now for only: $16.46 |
| Berberine chloride Standard 20MG Laboratory Reagent | |
 |
$159.99 Time Remaining: 27d 9m Buy It Now for only: $159.99 |
| p Toluoyl chloride 100ML Laboratory Reagent | |
 |
$99.99 Time Remaining: 3d 16h 58m Buy It Now for only: $99.99 |
| 3 Nitrobenzoyl chloride 98 100g Laboratory Reagent | |
 |
$102.99 Time Remaining: 3d 16h 57m Buy It Now for only: $102.99 |
| Orion Research Model 417 Ionalyzer Skin Chloride Meter Test Set w Tray+Lid Lab | |
 |
$50.00 Time Remaining: 2d 12h 58m Buy It Now for only: $50.00 |
| poly vinyl chloride lab angle valve 1 4 NPT to hose barb JAPAN 150 PSI new 1 4 | |
 |
$35.00 Time Remaining: 7d 2h 26m Buy It Now for only: $35.00 |
| Sodium chloride 995 500g Laboratory Reagent | |
 |
$145.99 Time Remaining: 4d 17h 19m Buy It Now for only: $145.99 |
| Trifluoromethanesulfonyl chloride 5ML Lab Reagent | |
 |
$174.99 Time Remaining: 4d 17h 21m Buy It Now for only: $174.99 |