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An actual yield of 18g, the theoretical yield is unknown. Calculate the theoretical yield?
During a combustion reaction of H and O, H2O was produced. What is the limiting reactant in the reaction? And why?
72cm³ of a mixture of Nitrogen and Nitrogen oxide were passed over heated copper until all the nitrogen oxide had been reduced to nitrogen. The volume of the resulting gas was 60cm³, calculate the volume of nitrogen oxide in the original mixture.
130cm³ of air were passed through heated carbon. The resulting gas consisted a Carbon monoxide and nitrogen and the volume of Carbon monoxide was 54cm³. Calculate the volume of Nitrogen.
Why do scientists sometimes discard theories?
To what volume must you make 18 g of table salt if you want a physiological saline solution? (Physiological saline is 0.15 M NaCl.).
Explain how to prepare 400ml of 10 mmol/litre glucose (C6H12O6) solution.
what happens to the bond angle when you add or remove an electron domain (electron pair)?
True or false
1. It is more common for a solid to have a higher density than a liquid.
2. The dispersion forces decreases with increasing atomic size.
3. Lower molecular forces allows freer movement.
Using your polymeric materials data collection and sorting table you or your class/team produced, please answer the following questions on a separate sheet of paper.
From the polymeric material samples collected:
1.Which polymeric material was most commonly collected?
2.What percentage of the total collection did the most common material represent?
3.Which polymeric material was the least common collected?
4.What percentage of polystyrene materials were collected?
5.What was the most common application collected for polyethylene terephthalate materials collected?
6.Ranking the polymeric materials collected from the most common to least common, where did high-density polyethylene rank in your sample?
