You are to make a 0.700 M solution of NaCl from the solid sodium chloride bottle in the chemistry stockroom. You'll have to weigh out the correct amount of solid sodium chloride in order to make 1.50 L of this solution. How much should you weigh out, so that you can just put it into a 1.5000 L volumetric flask and fill it to the mark with solvent

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante