Organic Chemistry Answers

PET has a Young's, Modulus of 3.5 GPa and PLGA 1.2 GPa. A polymer blend is prepared with 50:50 mixture (PET:PlGA) . What is the Young's, Modulus of this blend (use mixture rule)? Calculate the percent load borne by PET when the blend is subjected to a load. If after 10 days, half of PET and one third of PLGA had degraded, what is the Young's Modulus of this blend ?

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How is an aldehyde produced? And what is the oxidation product of an aldehyde?

What is the functional group of aldehydes and ketones ? How are they different from each other?

1. What is the molarity of a solution that contains 10.0 grams of Silver Nitrate that has been dissolved in 750.0 mL of water?

2. You want to create a 0.25 M Potassium Chloride solution. You have mass of 5.00 grams of Potassium Chloride. How much water is needed?

3. What is the molality of a solution that contains 48 grams of Sodium Chloride and 250 mL of water?

4. What is the percentage mass of problem #1?

5. How many mL of hydrogen peroxide are needed to make an 8.50% solution by volume of hydrogen peroxide if you want to make 450.0 mL of solution?

6. What is the mole fraction of the solute in the solution of problem #1?

7. What is the mole fraction of the solvent in the solution of problem #1?

8. What is the molality ions in the solution of problem #3?

9. What is the molality of a solution that contains 13.4 grams of calcium chloride dissolved in 655.0 mL of water?

10. What is the molality ions in the solution of problem #9?

2. State the mechanism for the reaction below. Draw and name the product according IUPAC system.

1. What is the molarity of a solution that contains 10.0 grams of Silver Nitrate that has been dissolved in 750.0 mL of water? Also, what is the percentage mass, mole fraction of the solute in the solution and mole fraction of the solvent in the solution?

2. You want to create a 0.25 M Potassium Chloride solution. You have mass of 5.00 grams of Potassium Chloride. How much water is needed?

3. What is the molarity of a solution that contains 48 grams of Sodium Chloride and 250 mL of water? What is the molarity ions in the solution?

4. How many mL of hydrogen peroxide are needed to make an 8.50% solution by volume of hydrogen peroxide if you want to make 450.0 mL of solution?

5. What is the molarity of a solution that contains 13.4 grams of calcium chloride dissolved in 655.0 mL of water? What is the molarity ions in the solution?

2NF3(g) + 3H(g). =. N2(g) + 6HF(g)


If 15.008 L of hydrogen gas is consumed at STP, how many moles of HF would be formed? ( Show full working with the formulas)

9Na + 4ZnI2 = 8NaI + NaZn4

From this equation:

If 526,68 grams of ZnI2 is completely reacted, what is the mass of NaZn4 produced? (Show full working)

The %of Copeland oxygen in samples of CuO obtained by different methods were found to be same this proves the law of

The specific heat capacity of copper metal is 0.385 J/g · K. How much energy is required to heat 204 g of copper from –17.7 °C to 28.5 °C?