PLEASE ANSWER QUICK What is the percentage by mass of the solution formed when 22.0 grams of HCl is dissolved in 90.0 grams of water?

24.4%
22.48%
19.6%
16.7%

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Word equation for k+ h2o yield koh + h2

How many liters of 3.0 m naoh solution will react with 0.60 liters of 4.0 m h2so4? h2so4 + naoh → na2so4 + h2o 1.2 l 1.6 l 2.4 l 2.8 l