The component of lime, calcium hydroxide, has a pH of 12.5. This makes it a good neutralizing agent for acid spill in the laboratory. During a laboratory exercise you spill what amounts to 32.5g of sulfuric acid. Knowing that you need a base to neutralize the reaction you go to the cabinet and retrieve the calcium hydroxide. You weigh 32.5g of it to begin the reaction. Did you succeed in neutralizing the reaction?

Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /

How manyatoms of mercury are in 1.4214e+1 ml sample

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.