General Chemistry Answers

1.      Subshells half-filled with electrons are particularly stable. Can you suggest a possible

physical basis for this claim?

If an average fluorine atom has a mass of 3.16×10-23 g, what is the average mass of a chlorine atom in grams?

A teacher placed a beaker of limonene at the front of a

classroom. At first, the students at the back of the classroom could not smell the limonene. After two minutes,

the smell of limonene had spread throughout the classroom. The air in the classroom was still and calm.

Explain this observation using the particle model of matter.

Calculate the mole fraction of a 20% aqueous hydrochloric acid solution

Calculate the mole fraction of 25% aqueous hydrochloric acid solution

If the vapor pressure of bromobenzene is 1 atm at a temperature of 2.9° C and 20 atm at a temperature of 53.8° C, calculate the boiling point of bromobenzene. If you know that the value of the entropy change of steam is Cal.deg-1.mol-1 21

is 9.1 M HCL and electrolyte

A 25.0 milliliters sample of HNO_{3 (aq) is neutralized by32.1 milliliters of 0.150 M KOH (aq). What is the concentration of the acid? Show a numerical setup}

volumetric pipets are shatterproof so it does not matter if they roll off the bench is it true or false

true or false ,you should not for force pipet filter onto the end of pipet