Question Solved1 Answer 1) Calculate the volume of Ba(OH)2 0.20 M necessary to neutralize 300.0 mL of H3PO4 0.30 M. 2) Reactants X and Y are mixed, each at a concentration of 0.60 mol/L. They react to form P and Z according to the following reaction: X + Y ⇌ P + Z (i) At equilibrium, the concentration of X is 0.20 mol/L. Calculate the equilibrium constant. (5 marks) (ii) What does this value for the Keq mean for the reaction?

Sublimation reaction of an acid hydrate is shown below. A.nH2O(K) → A(g)+ nH2O(g) For the reactions in which n=2 and 3 the AG and asº at 435 K are given in the following table. For these reactions compute the 4.Gº at 337 K. n T=435 K AS (kJ molilK) 0.539 0.655 A.G(ki mol ) 109.5 174.2 2 3

Stream ecologists are interested in the number of distinct organisms found in streams, and whether differences exist based on geography. Separate random samples are obtained from sites in northeastern and southeastern streams, and the number of distinct organisms is recorded for each site. The data are given as separate boxplots for northeastern and Stream ecologists are interested in the number of distinct organisms found in streams, and whether differences exist based on geography. Separate random samples are obtained from sites in northeastern and southeastern streams, and the number of distinct organisms is recorded for each site. The data are given as separate boxplots for northeastern and southeastern streams. Which region has an interquartile range of approximately 15? Variable Southeast Northeast 10 20 30 40 50 60 Both Southeast Northeast Neither

2. (3 pts.) Stream ecologists are interested in the number of distinct organisms found in streams, and whether differences exist based on geography. Separate random samples are obtained from sites in northeastern and southeastern streams, and the number of distinct organisms is recorded for each site. The data are given as separate boxplots for northeastern and southeastern streams. Variable Southeast Northeast 0 10 20 30 40 50 60 Which of the following statements about these data is correct? (a) The plot is skewed to the right. Fals (6) The northeastern plot is nearly symmetric. True / False (c) The median number of organisms found in northeastern streams is larger than the median for southeastern streams. True / False

Show hand hand analysis of the circuit showing algebraic expressions and numerical results for the magnitude and phase of the transfer function Vc/Vs as a function of the angular frequency of the source (or the frequency f). Calculate the corner (3 dB) frequency c (or fc) for your circuit. Calculate the magnitude and phase of the transfer function at: =0, =c, and =. In R3 w Out Vs C2+Vc IH

14. A beaker of water rests on a scale. A metal ball is then lowered into the beaker using a string tied to the ball. The ball doesn't touch the sides or bottom of the beaker, and no water spills from the beaker. A FIGURE Q13.1

6. (16 pts.) At Center Hospital there is some concern about the high turnover of nurses. A survey was done to determine how long (in months) nurses had been in their current positions. The responses of 20 nurses were in months): 23 2 5 14 25 62 27 42 12 8 7 23 29 26 28 11 20 31 8 36 2. Construct a stem and leaf plot for the data. b. Determine the quartiles Q. Q., and 0. • Does the data contain any outliens? Compute the inner fences, outer fences and identify mild and extreme cuttienif any. Draw a box plot indicating outliers, if any.