Mysterious Powder
Lab Report
Test
My group chose to do these tests: PR, PH, iodine, and vinegar. We tested PR with the mysterious powder because we wanted to know if it was a base or an acid. We found out that it was a base. Second we tested for the PH of the mysterious powder because even if we know it's a base we what to know the exact PH of the powder. My group found that it has a PH of 8. The third test we took was iodine. We tested iodine to test for starch. And we found out the powder was positive. Which means that it had starch in it. Finally we tested for vinegar. My group tested for vinegar because we wanted to see if it would fizz or not. And it did for 16 seconds!
Results/Conclusions
We thought that the mysterious was a mixture of powder orange, green, and yellow. we thought it was these colors because when we did the PR test with the mysterious powder it turned a pinkish color and so did the orange and we think that it is in it because the PH was 8 and the mysterious powders PH was 8 too. My group thinks it's green because we remember from the iodine test green was the only one that was positive and the mysterious powder was positive also. We think yellow is because pretty much the same as orange we think yellow is in the mysterious powder because when we tested for the PR it turned a pinkish color and so did the mysterious powder.
Iodine Test
This a picture of the tools we had for the iodine test. We had a positive test. In this picture you will see our mysterious, iodine, spot plate, and powder when mixed with iodine.
PH Test
This picture shows the tools we used for the PH test. When we tested for the PH we got the number 8 for our exact PH. in this picture you will see water, spot plate, PH scale and the litmus paper by the number 8 on the PH scale.
PR Test
In this picture is the reaction of PR test when mixed with the mysterious powder. As you can tell it turned kind of a pinkish sort of bubble gum color.
Vinegar Test
In this picture you will see the tools we had for the vinegar test you had the mysterious powder, vinegar, and a tooth pick for stirring both substances together. When the both substances are put together and stirred it fizzed for 16 seconds.