How many moles of oxygen are formed when 58. 6 g of kno3 decomposes according to the following reaction? the molar mass of kno3 is 101. 11 g/mol. 4 kno3(s) → 2 k2o(s) 2 n2(g) 5 o2(g).

What type of matter is made of only one kind of atom

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.