Chemistry Final Chapters

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Hello, I need help with the following questions. Work must be shown and readable which will determine tip amount.

1. A 10.00 gram mixture of NaHCO3 and Na2CO3 was heated and yielded 0.0357 moles of H2O and 0.1091 moles of CO2. The reactions are described by: NaHCO3 —–> Na2O + CO2 + H2O and Na2CO3 —–> Na2O + CO2. Calculate the volume of CO2 produced in each reaction at 733 Torr and 43oC. and the percentage composition of the mixture.

3. In a photosynthesis reaction. 0.5796 grams of glucose was formed at a temperature of 37.0oC and at a pressure of 745 Torr. How many milliliters of oxygen were formed with the glucose and how many milliliters of carbon dioxide were reacted. The vapor pressure of water at 37.0oC is 50.0 Torr. The photosynthetic reaction is:
6CO2 + 6H2O —–> 6O2 + C6H12O6

5. In the reaction of hydrochloric acid and sodium hydroxide, 100.00 ml of 0.1234M hydrochloric acid reacts with 50.00 ml of 0.5432M sodium hydroxide. Will the final solution be more acidic or more basic? How many mole of excess acid or base will remain? What is the final (H+) and what is the final pH?

7. If 30.0 ml of 0.150 M CaCl2 is added to 15.0 ml of 0.200 M AgNO3, how many grams of AgCl will be precipitated?

10a. 1.00 liter flask was evacuated and 5.00 grams of liquid NH3 was added to the flask, and the flask was sealed with a rubber stopper. If it takes 7.10 atm of pressure in the flask to blow out the rubber stopper, at what temperature will the stopper be blown out?

10b. When ammonium nitrite is heated it decomposes to give nitrogen gas and water. This property is used to inflate some tennis balls. Write a balanced equation for the reaction. Then calculate the quantity of ammonium nitrite needed to inflate 10 tennis balls each to a volume of 86.2 ml at 1.2 atm. and 22oC.___________________________________________________________________________________________________

1. How does the attraction the nucleus exerts on electrons in an atom change as the row number increases:

2. Predict the Z number of the smallest element in row 5.

3. Which of the following species is smaller: Cs or Cs+1? Is your answer consistent with your answer to question 1?

4. What simple ion is formed from the element Z = 39?


5. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z = 49 and Z = 51.

6. What is(are) the noble gas(es) that has(have) the same electron configuration as each of the ions in the compound formed from Z = 38 and Z = 34?

7. Why is the following electron designation not possible:

18Ar4s23dxy23dxz14px2

8. Draw the Lewis structure for the compound formed from elements Z = 32 and Z = 16.

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