Organic Chemistry Answers

3I2 +10KNO3 + 4HCl - 6KIO3 + 10NO +2H2O + 4KCl which element is oxidized

cesium ,react with oxygen, and create VSEPR SHAPE

1. When 9.0 g of hydrogen gas, H₂, reacts with oxygen gas, O₂, 73.0 g of water is produced.    2H2 + O2 --> 2H2O a) What is the theoretical yield of water? b) What is the percentage yield?

2. Powdered zinc metal reacts with sulphur (S₈) when heated to produce zinc sulphide.

a) What mass of product can be produced with 25 g of zinc?

b) What is the actual yield if the percentage yield was 80%?

3. The thermite reaction has been used to weld railroad rails, make bombs, and ignite solid rocket fuel. The equation of the reaction is:

a) What is the theoretical yield of iron if 100.0 g of Fe₂O₃ is used?

b) What is the percentage yield if 52.3 g of iron is actually produced?

Given the reality of duplication and plagiarism, give a parallel description or analogy between proper paraphrasing of textual information and the uniqueness and similarities of isomers.

a patient with Weight 76kg must be injected the solution of NaHCO³ in the concentration of 0.66mol/kg .howany millilitres of this solution with the weight fraction of 4.2ust be taken?

A 1.77×10^-1 g sample of HNO₃ and a 5.21 g sample of NO react in a closed 8.91 L container at 470 K, according to the following balanced chemical equation:

2HNO₃(g) + NO(g) → 3NO₂(g) + H₂O(l)

Calculate the P_NO2 (in atm) in the container after the reaction has gone to completion.

A 7.82 g sample of water is introduced into a 6.46 L flask containing some CO₂ gas. The flask is heated to 307.11 °C at which temperature all of the water is converted to the gaseous phase, giving a total pressure in the flask of 12.305 atm. Calculate P_H2O (in atm) in the flask at 307.11 °C. Calculate P_CO2 (in atm) in the flask at 307.11 °C. Calculate the mass of CO₂ (in grams) in the flask at 307.11 °C. Calculate X_H2O in the flask at 307.11 °C. 

A 7.82 g sample of water is introduced into a 6.46 L flask containing some CO₂ gas. The flask is heated to 307.11 °C at which temperature all of the water is converted to the gaseous phase, giving a total pressure in the flask of 12.305 atm. Calculate P_H2O (in atm) in the flask at 307.11 °C. 

B: Lewis structures and molecular shape

1. Determine the Lewis structure of trichloromethane/formaldehyde/methanol.

Trichloromethane

O Formaldehyde

 Z Methanol

2. Predict its molecular shape: you must include a sketch along with bond angles.

3. construct a model of the molecule. Take a snapshot of your model and insert it into

the space provided.

4. Show bond polarities and state whether the molecule is a polar molecule.

B: Lewis structures and molecular shape

1. Determine the Lewis structure of trichloromethane/formaldehyde/methanol. The

compound you select will depend on the first letter of your surname as follow:

 A – F Trichloromethane

 G – O Formaldehyde

 P – Z Methanol

2. Predict its molecular shape: you must include a sketch along with bond angles.

3. Use Styrofoam spheres/play dough/any other available and appropriate material to

construct a model of your molecule. Take a snapshot of your model and insert it into

the space provided.

4. Show bond polarities and state whether the molecule is a polar molecule.