For the following sets of quantum numbers, determine if it is an allowed set or not. If it is an allowed set, write the sublevel that it refers to. If it is not an allowed set, state why it is not correct. n=3 , l = 3, ml =0, ms= -1/2

n=4 , l = 3, ml =2, ms= -1/2

n=4 , l = 1, ml =1, ms= +1/2

n=2, l = 1, ml=-1, ms= -1

n=5 , l = -4, ml =2, ms= +1/2

n=3 , l= 1, ml =2, ms= -1/2

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?