Lucia wants to develop a process for dyeing shirts so that the color will not fade when the shirt is washed. She proceeds with the following activities: A. Lucia notices that the dye in a design fades when the shirt is washed. B. Lucia decides that the dye needs something to help it combine with the fabric. C. She places a spot of dye on each of four shirts and then places each one separately in water, salt water, vinegar, and baking soda and water. D. After one hour, all the shirts are removed and washed with a detergent. E. Lucia notices that the dye has faded on the shirts in water, salt water, and baking soda, while the dye did not fade on the shirt soaked in vinegar. F. Lucia thinks that the vinegar binds with the dye so it does not fade when the shirt is washed. Y Part A Identify each activity as an observation, a hypothesis, an experiment, or a conclusion. Drag the appropriate items to their respective bins.

A prescription calls for 120 mL of 10% codeine solution. Your stock solution of codeine is 50% strength. How much stock solution will you use to formulate this medication?

63 gallons of a 26% acid solution are mixed with 44 gallons of a 80% acid solution. What is the acid concentration of the resulting mixture? Round to the nearest percent.

Suppose that your hydrated salt sample was contaminated by an anhydrous salt. You do not realize this and complete the laboratory experiment with the contaminated sample. Will your resulting percentage of water in your sample be too high, too low, or unaffected by this contaminant?