Chemistry Answers

What is the molarity of a solution which contains 12.25g of hydrogen sulfate in 1000. ml of solution

39.8g of a mixture of potassium chloride KCl and potassium trioxochlorate(V), KClO3 were heated to a constant mass. If the residue weighed 28.9g, what was the percentage mass of the potassium chloride in the mixture

What mass of argon gas, Ar, is in a 30L scuba tank of the temperature of the tank is 27 degrees Celsius and the pressure inside is 200 atm

Silver has a face-centered cubic unit cell. How many atoms of Ag are present in each unit cell?

Calculate the amount of heat released during the combustion of

a. 0.75 mole of C3H6O

b. 120g of C3H6O

What weight of magnesium chloride is required to prepare 202 ml of 0.105M

solution?

Give the observation of each container.

Container 1-25 ml of liquid soap in 100 ml distilled water

Container 2-25 ml of liquid soap in 100 ml tap water

Activation process and importance of zymogen

ammonia gas occupies a volume of 150mL at a pressure of 720 torr. what volume will it occupy at standard pressure (standard pressure::760 torr)

A solution turns litmus paper to red, thymol blue to orange, and orange IV to red. Estimate the pH of the solution.