What is true of an aqueous solution that is 15.0 percent HNO3 by mass? (

15 g of solute (HNO₃) are contained in 100 g of solution

Explanation:

There are many kind of concentrations, Molarity, molality, ppm, percent by volume, percent by mass.

Molarity for example are the moles of solute in 1L of solution.

Molality can be defined as the moles of solute in 1kg of solvent.

ppm are the mg of solute in 1kg of solution.

Percent by volume are the volume of solute (mL) in 100 mL of solution.

In this case, percent by mass is the way to say that x grams of solute are contained in 100 g of solution.

the atomic mass is the bottom number on the element.

-steel jelly

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)