Determine the concentrations of the stock solution and four dilutions. dilution #1 = 10.00 ml of stock diluted to 25.00 ml dilution #2 = 7.50 ml of stock diluted to 25.00 ml dilution #3 = 5.00 ml of stock diluted to 25.00 ml dilution #4 = 2.50 ml of stock diluted to 25.00 ml dilution #1 = 10.00 ml of stock diluted to 25.00 ml dilution #2 = 7.50 ml of stock diluted to 25.00 ml dilution #3 = 5.00 ml of stock diluted to 25.00 ml dilution #4 = 2.50 ml of stock diluted to 25.00 ml

What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.