F the measured absorbance a was 0. 5 ± 0. 08 and path length b was 1. 00 ± 0. 03 cm, what is the standard deviation sc of the dye concentration c.

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

What forms when chemical reactions combine pollution with sunlight?

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88