Reactions (16 pts) consider two beakers. in beaker #1, 123.0 g of barium nitrate is dissolved in 500 ml of water. in beaker #2, 123.0 g of potassium sulfate is dissolved in 500 ml of water. the two solutions are poured into a common vessel, and 109.8 grams of solid barium sulfate form. the remaining material stays dissolved in the water.
a) write and balance chemical equation for this process. be sure to include subscripts that indicate the state of matter. (4 pts)
b) what was the molar concentration of barium nitrate in beaker #1? (4 pts)
c) which is the limiting reagent for this reaction? show how you determined this. (4 pts)
d) what is the molar concentration of the excess reagent in the reaction vessel after the reaction? (6 pts)
the answer is false because not all countries have geysers under their crust. for example, iceland uses geothermal energy because it is available every in their country.
uranium-238 i believe is your answer
moles fe2o3 = 16.5 /159.691 g/mol=0.103 moles fe = 0.103 x 2 = 0.206 mass fe = 0.206 x 55.847 g/mol=11.5 g
answer: the balanced hemical equation is given below. 18 moles of oxygen are produced.
when 2 moles of potassium chlorate decomposes to produce 2 moles of potassium chloride and 3 moles of oxygen gas. the balanced chemical equation for this decomposition reaction follows:
by stoichiometry of the reaction,
2 moles of potassium chlorate produces 3 moles of oxygen gas
so, 12 moles of potassium chlorate will produce = of oxygen gas.
hence, 18 moles of oxygen gas will be produced.