Chemistry Answers

Calculate the chloride ion (Cl−)

(Cl−) concentration for a 0.183 M AlCl3

0.183 M AlCl3 solution.

A student needs to prepare 50.0 mL

50.0 mL of a 0.90 M

0.90 M aqueous H2O2 solution. Calculate the volume of 4.6 M H2O2

stock solution that should be used to prepare the solution.

If 7.72 g

7.72 g of 

CuNO3 is dissolved in water to make a 0.800 M

0.800 M solution, what is the volume of the solution in milliliters?

How many moles of NaOH

NaOH are present in 26.0 mL

26.0 mL of 0.210 M NaOH

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

With the two named examples give the types of bond a drug forms with its receptor at its site of action

is 9.1 M HCL and electrolyte