Lab Report: Ph

testing ground Report pH Name _________________________________________________________ Materials Needed You testament need the by-line materials for this lab. Red net C rancidee riddle or paper wipe Container for pee (at least 250 ml or 1 / 2 pint) trinity transparent cups (about 100 ml or 3 ounces) or several(predicate) similar containers Hot irrigate (e. g. , from a faucet, heated in a microwave oven, etc. ) Thermometer Vinegar Baking tonic Safety goggle Tongs or fork Eyedropper or drinking chaff business deal model or toothpick Extra sticks or drinking straws for stirringHypothesis In this lab, you will compare the pH ranges of acetum and a solution of water and baking soda. Do you think acetum is an acid or a footing? What about the baking soda? Write down your hypothesis now. single-valued function Carry out the following steps to recognise this lab. 1. Peel off several red shekels leaves and tear them into pieces about 2. 5 cm (1 inch) square. Place the red cabbage pieces into the container. 2. Cover the cabbage pieces with hot water (not boiling water) and soak for about 30 minutes.As a safety precaution, procedure the thermometer to make sure that the temperature of the water is not higher than 50 degrees Celsius (about cxxv degrees Fahrenheit). KC remotenessLearning 3. With tongs or a fork, conduct and discard as m any cabbage pieces from the container as you can. 4. Carefully rain buckets the remaining cabbage water from the larger container through the coffee filter into the three smaller cups or other transparent containers. 5. Note the regal or dark blue excuse.If the cabbage water has a pH of about 7. 0, which is typical for plain tap water, the color will be to a greater extent purplish. If your water is treated by a water furnish facility, it may have a pH around 8. 0, resulting in a dark blue color. This water color is your baseline. You will be canvas other colors to this as you proceed. 6. Use a drink ing straw or eyedropper to transfer vinegar from its container to one cup of cabbage water, fiver drops at a time.Stir the cabbage water after each vinegar transfer. Note any color change. Continue transferring vinegar five drops at a time until the color of the cabbage water has changed to a color different from that of the original cabbage water. 7. Use a craft stick or toothpick to transfer baking soda from its container to another cup of cabbage water, just a few grains at a time. Stir the cabbage water after each baking soda transfer. Note any color change.Continue transferring baking soda a few grains at a time until the color of the cabbage water has changed to a color different from that of the original cabbage water. 8. The THIRD cup is your baseline cup. If you tap water is neutral, its color should be mostly purple, but it may be more bluish if your tap water has been treated by your county or metropolis water supplier. 9. Record the color of the water after your final a dditions of vinegar or baking soda. What pH does each color represent? Is vinegar an acid or a base?How about baking soda? Observations/Data Record the observations and/or data you collected here. KCDistanceLearning Lab Evaluation What strengths and weaknesses did you find in the experimental tendency? Is there anything you would do differently next time? How, if at all, would you do the experiment differently if you were to do it again? Discussion After you complete your lab, discuss your results in the course discussion board. Summarize the responses to your discussion here. KCDistanceLearning