Ayaka

A saturated aqueous solution of calcium hydroxide, Ca(OH)2, is approximately 0.13% calcium hydroxide, by mass, and has a density of 1.02 g/mL. What is the pH of such a solution?

Calculate the Ksp for silver sulfate if the solubility of Ag2SO4 in pure water is 4.5 g/L. Ag2SO4(s) <--> 2Ag^+(aq) + SO4^2-(aq)

Find the volume of the solid obtained by rotating the region bounded by the curves y=cos(x), y=0, x=0, and x=π/2 about the line y=1.

Calculate the pH of the buffer formed by mixing equal volumes [C_2H_5NH_2]= 1.68 M with [HClO_4]= 0.966 M . Kb=4.3×10−4.

Calculate value of Ksp for Ca(OH)2 (ΔG∘f(Ca2+)=-553.6 kJmol−1 , ΔG∘f(OH−)=-157.2 kJmol−1 , ΔG∘f(Ca(OH)2)=-898.5 kJmol−1 ).

A 1.0L of an aqueous solution of ethylene glycol, HOCH2CH2OH, is 60% HOCH2CH2OH by mass and has a density of 1.15 g/mL. Calculate the morality of the solution.

At 100 degrees C, pure H2O has a vapor pressure of 760 torr. An aqueous solution has a concentration of 1.90 M MgCl2. The van't Hoff factor is 2.45. The density of the solution is 1.09 g/mL. Calculate the vapor pressure of the solution.

Please help me.. A mountain climber begins a hike at an elevation of 6000 feet. She then climbs such that her elevation increases by 1000 feet per hour. Let x = the amount of time that the climber has been hiking, in hours. Let E(x) = the elevation of the...

Label the year and name of each geologic area on your geologic time scale. Using the 1 cm = 10 million years scale, figure out and measure each distance below from the PRESENT line. Pre-Cambrian Era = 4.6 Billion years ago = _______________________ cm fro...

I'm going to use 1 mm to represent 1 million years. 1 bya 2 byaM 3 bya 4 bya 4.6 bya What would be these numbers?

Sorry I meant molality

If u go to the last page, you’ll see that you’re only writing a few sentences about it

A person is right 🧌