# data[].attributes.body
1.

2,Along the way when we were boiling the salt water, we somehow gained salt.

3. If our percent error was negative, we think that when the water was evaporating, some water carried the salt with it and left it on the watch glass. Therefore when we measured the recrystallized salt in the beaker, it lost salt.

4. The ESLR's for us were communication and critical thinking, because you have to communicate in order to work together and get precise, accurate, and correct results. Critical thinking is common sense and you have to use critical thinking in this lab and it helps make things better.

# data[].attributes.body
1. Calculate for your percent error for each trial. Use the Daum Equation Editor to create your equations and add it to your Padlet or Mural report.

2. If your percent error was positive, what logical sources of error might have been the cause? Explain. Answer this question regardless of what your results were.

3. If your percent error was negative, what logical sources of error might have been the cause? Explain. Answer this question regardless of what your results were.
4. Which ESLR or ESLR’s were  addressed in the activity? State the ESLR and explain why in a short paragraph.

# data[].attributes.body
1) measure the flask and the beaker.

2) measure 1 to 2 grams of salt.

3) Get 25ml of water using the graduated cylinder.

4) Mix both the water and the salt in the flask.

5) Pour the mixture into the beaker.

6) Place the beaker with the mixture on the heating plate.

7) Wait until all water is evaporated and only salt is left.

8) Take the beaker off the heating plate with the rubber tongs

9) Move the beaker with the rubber tongs, around the lab bench until it is cool enough to hold in your hand.

10) Measure the recrystallized salt with the electronic balance.

11) Write down your results.

# data[].attributes.body
You will learn to To perform and master a recrystallization of an ionic compound To write a procedure for a simple experiment To calculate for percent error in an experiment To understand how results affect percent error To identify sources of error in experiments

# data[].attributes.body
Recrystallization is one way of isolating an ionic compound from a solution. If several ionic compounds are present in an aqueous solution, then a precipitation reaction may be performed to remove the unwanted ions. In this experiment, a known amount of NaCl will be dissolved in some water, and then recrystallized by boiling off the water.