Question 5 OT 5 At which temperature do particles stop moving entirely?
O A. 0°C
O B. 32 K.
O C. 32°F
O D. OK

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5

What is the amount of energy for a photon that has a 125 cm wavelength