An unknown substance is reported to have the following composition: 21.2%N, 6.1%H, 24.2%S, and 48.5%O. If we assume there is 100 grams of the substance, how many moles of oxygen would there be?

What is the number of moles in 15.0 g ash3?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

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