Mindset Matters It's September, and Olive and Aarti just finished taking their first math test of the year. After the test, Aarti thinks. Wow, this test was so hard. I guess I'm just not a math person. I'm never going to pass this class. Meanwhile, Olive is thinking, Whew, that was tough. I guess math is harder this year. I'm going to have to work hard to understand this stuff.

Summary of mindset matters​

In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.