An analytical chemist weighs out 0.057 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.0600 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 11.4 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. 0 mol

1.  All chromatography involves a solid phase, and mobile phase.  In thin layer chromatography the solid phase is the silica layer on a piece of glass, and the mobile phase is the organic solvent that will travel along the TLC plate. which direction will the mobile phase (the organic solvent) travel?  A) UPWARD B) DOWNWARD C) HORIZONTALLY LEFT TO RIGHT

12: Mastery - Kinetics X com/ilm/takeAssignment/takeCovalentActivity.do?locator=assignment-take juju_ ncepts " Q Search OWLv2 | Online teaching and le Free Online Survey... [CO] = [Cl₂] = [COCI₂] = Submit Answer Home - Academia... PRO Modules Create Your Rubric-... [Review Topics] [References] Use the References to access important values if needed for this question. The equilibrium constant, K, for the following reaction is 77.5 at 600 K. CO(g) + Cl₂(g) CoCl₂(g) Calculate the equilibrium concentrations of reactant and products when 0.474 moles of CO and 0.474 moles of Cl₂ are introduced into a 1.00 L vessel at 600 K. Retry Entire Group IL & M M M X + hp 4+ 7 more group attempts remaining 8 19 ( 9 110 The Utility Experts ... m 4 12 = insert » | ← 12/1 ba

1. List the concentrations of the stock. [Acetone] 0.6M [lodine] 00025M [HC1] 2. From the computer plot of the data for each trial (absorbance vs. time in seconds), detemine the slope of the best straight line; use the following data table to summarize your results: Table 1. Trial # Acetone, mL lodine, mL HCI, mL AAbs/At ( slope of line) H20, mL A 1.0 1.0 1.0 2.0 -0.0010258xto:34978. t0.0016339x+0.44357 70,00g0217x 0.89112 0. 0013205xto,235271 2.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 D 1.0 1.0 2.0 1.0 3. Convert stock concentrations to initial concentrations and fill in Table 2: Table 2. Trial # Disappearance Rate of l2 (M/s) -A[L/At (= -slope/730) [Acetone] [lodine] [HCIJ 0.12 0.00050.12 0.24 0.12 10.12 0. coe 5 0.12 0.001 0.12 D 0.00050.24