A sample of k2s contains 135 g of potassium how many moles
A sample of K2S contains 1.35 g of potassium. How many moles of potassium sulfide are present in the sample?
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an organic acid contains 414 carbon 347 hydrogen and 551 oxygen by weight a 0080-mol sample of this compound weighs
calculate the number of atp molecules that are produced from the biological oxidation of one molecule of each of the
a solenoid 30 cm long consists of 3921 loops of wire if the magnetic field inside the solenoid is 40 t what is the
a 600 kg person running at an initial speed of 325 ms jumps onto a 120 kg cart that is initially at rest the person
a sample of k2s contains 135 g of potassium how many moles of potassium sulfide are present in the
a girl is pushing on a 45 kg dresser with 300 n of force the dresser has a coeficient of statice friction of 083 and a
what is the percentage by mass of nitrogen atoms in ammonium phosphate
a 100 m rope of negligible mass connects two astronauts each having a mass of 750 kg they are isolated in space
a sample of zinc nitride zn3n2 contains 390 g of zinc how many nitride ions are
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