chloride paper (on surface) lower (turned Paper less pink) Paper (turned. This results in cobalt chloride paper changing colour from blue to pink. After half an hour, the water vapor builds up in its inner walls and the second metal pot (B) will also show the same consistency and at the same time, the first blue cobalt chloride paper on it would turn pink. Cobalt chloride paper is blue in colour when it is dry, and becomes pink when. If water is produced it will condense in the u tube cooled by the ice water. Glass slides are placed over dry cobalt chloride sheets to keep the strips in place.Ĥ. There is an opening in the area below the dicot leaf and therefore, most of the transpiration occur from below.ģ. Most breathing occurs from the bottom of the dicot leaf. The stomata are surrounded by two bean-shaped guard cells. Stomata’s minute openings are in the epidermal layer of the leaves. After about half an hour what change, if any, would you expect to find in the cobalt chloride paper placed on the dorsal and ventral sides of the leaf? Give a reason to support your answer.Ģ. A folded cone of paper used as a funnel may be helpful for this. Carefully pour about 3 g of ammonium dichromate(VI) into a 1000 cm 3 conical flask so that it forms a small heap in the center. Why are glass slides placed over the dry cobalt chloride papers?Ĥ. Confirm that this is water with the blue cobalt chloride paper. Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.ģ. NOTE: Be sure to keep the strips sealed tightly in the vial. Name the colour of dry cobalt chloride paper.Ģ. If moisture is present, the test paper will turn from blue to a light pink/white color.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |