General Chemistry Answers

Calculate the vapor pressure of water above a solution prepared by dissolving 28.5 g of glycerin in 125 g of water at 353 K

Draw the Lewis structure of the following species and use VSEPR theory to predict the basic geometry and final shape.      

i) NCl3

ii) PBr5

Use the concept of valence bond theory (VBT) to answer the following question.

i) Write the ground state of CH4 molecule;  

ii) Write the excited state of CH4 molecule;

iii) Identify the type of hybridization;

iv) Show the overlapping of bonds for sigma bond formation.

Using the periodic table, rank the elements in the following set in order of increasing (from lowest to highest) first ionization (IE1); F, Rb, Be, N. Explain your answer.

How is electrochemical energy produced?

calculate the molar volume of argon at 100'C and 100 atm on the assumption that it is a van der Waals gas

For the following species: Zn2+ and Na

i) Write the electronic configuration using noble gas notation.  

ii) Draw the partial orbital box diagram showing valence electrons for the above species (Zn2+ and Na), and indicate whether they are paramagnetic or diamagnetic.

Calculate the molarity of a solution prepared by dissolving 25.6 grams of Al(NO₃)₃ in 455 mL of solution.

How many grams of NaAlO2 is produced if 126.4 g of NaOH reacts completely

. While doing an experiment you realize that the procedure provides all the units of measurements as US customary units, but you only have instruments that measure SI units. The procedure says to dissolve 0.27 ounces sodium chloride into 3 cups water at 200°F for 3 minutes. (1 oz is equal to 28.35g and 1 cup is equal to 236.59 mL)