1. A student was performing the test for chloride in his unknown. When he added the five drops of HNO3, he observed bubbles forming (effervescence) in his unknown. Was chloride present in his unknown? How do you know? A student added barium chloride to her unknown and immediately witnessed the formation of a precipitate. She concluded that this white precipitate indicated the presence of chloride ion in her unknown. Is she correct? How do you know? A student has two unlabeled bottles of solution. One contains PO,3 and the other SO,²'. How can this student identify which is which?

What are the ingredients in carbonated soda responsible for the color change in litmus paper?

Which of the following best describes the titrant solution in a titration? O a variable concentration O a known concentration O an unknown concentration O an indicator solution

A 10.0 mL sample of fruit juice is titrated with 7.55mL of NaOH solution. The molar concentration of the NaOH solution of 0.101M.  A) Calculate the molar concentration of citric acid in the fruit juice. B) Determine the moles of citric acid per serving of the fruit juice. Use 240 mL as the serving size.