Calculate the number of moles in 25.0 g of each of the following:
a. He
b. 02
c. Al(OH)3
d. Ga S3
e. C4H10, butane

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

What can be found in the ionosphere

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest