What is the pH of a 0.30 M solution of (CH3)2NH which is also 0.90 M in (Ch3)2NH2Cl? Note: Kb = 5.4 x 10^-4 for (CH3)2NH

What type of solution is this?

Write the chemical reaction involved and the relevant Ka or Kb expression

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?