Sources of error: Method 1 Equipment: About ten grams of NaHCo3. 10 ml distilled water Small beaker Electronic balance Glass dome 10 ml graduated cylinder Glass rod Safety instructions : Wear safety goggles Wear a smock Be deilcate with materials Method: Measure out 10 ml of distilled water using the graduated cylinder. Transfer the water to the small beaker. Weigh out the total amount of sodium chloride available for the experiment. Weigh out 0.5 g NaHCo3. Add NaHCo3 to beaker containing water. Stir solution with glass rod until dissolved. Repeat step 3 until it becomes more difficult to dissolve the NaHCo3. Note the number of times 0.5 g NaHCo3 is added. Continue adding one grain of NaHCo3 at a time until it is no longer possible to dissolve it. Once saturation is reached, NaHCo3 crystals form at the bottom of the beaker. Measure the mass of NaHCo3 not added to determine the total amount of NaHCo3 that has exceeded the solubility limit.
Sources of error:
Method 1
Equipment:
About ten grams of NaHCo3.
10 ml distilled water
Small beaker
Electronic balance
Glass dome
10 ml graduated cylinder
Glass rod
Safety instructions :
Wear safety goggles
Wear a smock
Be deilcate with materials
Method:
Measure out 10 ml of distilled water using the graduated cylinder.
Transfer the water to the small beaker.
Weigh out the total amount of sodium chloride available for the experiment.
Weigh out 0.5 g NaHCo3.
Add NaHCo3 to beaker containing water.
Stir solution with glass rod until dissolved.
Repeat step 3 until it becomes more difficult to dissolve the NaHCo3.
Note the number of times 0.5 g NaHCo3 is added.
Continue adding one grain of NaHCo3 at a time until it is no longer possible to dissolve it.
Once saturation is reached, NaHCo3 crystals form at the bottom of the beaker.
Measure the mass of NaHCo3 not added to determine the total amount of NaHCo3 that has exceeded the solubility limit.
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