An aqueous solution of sodium hydroxide contains 20% naoh by mass. it is desired to produce an 8% naoh solution by diluting a stream of the 20% solution with a stream of pure water. calculate a. the ratios (g h20/g feed solution) and (g product solution/g feed solution). b. the feed rates of 20% solution and diluting water needed to produce 2310 lbm/min of the 8% solution.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i