4. Determine the changes in the molar volume, A,V°, for each of the reactions: a. 2H+(aq) = H2(g) Why is your answer so large? b. NaCl(s,halite) = Na+ (aq) + Cl(aq) How can aqueous species have negative molar volumes?

The results of your Solubility of a Salt experiment led to the following linear regression equation: ln(s)= -4197(1/T)+ 17.96 What is the heat of solution, ΔH, in kJ/mol?   a. 25   b. 35   c. 45   d. 55

A sample of graphite sealed under 0.458 atm of CO2(g) at 1080 K forms CO(g) and makes Ptot = 0.757 atm at eq≡m. Find KP: C(s) + CO2(g) 2 CO(g) KP = Peq(CO)2 Set up an ICE Table: Use other geven data to calculate the unknown: Ptot = 0.757 atm = Peq(CO2) + Peq(CO)= 0.458 – x + 2x = 0.458+x x=o.299 atm Peq(CO2) = 0.458 – x = ______ atm Peq(CO) = 2x = ______ atm Kp=Peq(CO)2  / Peq(CO2) = _____^2 atm2/ _____ atm = ______ atm

The following system is at equilibrium in a closed vessel: 4 HCl(aq) + MnO2(s) ⇆ MnCl2(aq) + 2 Cl2(g) + 2 H2O(l) Various stresses are applied to the system as illustrated in the chart. Drag the appropriate label from the list below that indicates how the system responds to each stress. Each label can be used more than once.

What is Boyle's law constant, kp if a sealed rigid container with a volume, Vof 0.600 L has a pressure, Pof 130.0 kPa? V = kg(1/P) BIUA - A - I E E E X x, = E 12pt Paragraph fx MacBook Air

The following table provides some information on carbon dioxide solubility in water. C P k T (mol/L) (atm) (mol/L atm) (°C) 3.70x10-2 1.00 20.0 9.50x10-2 Part A Part B {—| ΑΣΦ What pressure is required to achieve a CO₂ concentration of 9.50x10-² at 20°C? View Available Hint(s) 2.2852 Submit Previous Answers Part C 1.00 www. X Incorrect; Try Again; 5 attempts remaining 20.0 3.40x10-² 25.0 atm At 1 atm, how many moles of CO2 are released by raising the temperature of 1 liter of water from 20°C to 25°C? ►View Available Hint(s)

Calculate the temperature rise expected for the reaction of 50 mL of 2.10 M NaOH with 50 mL of 2.00 M HCI. Assume the density of the mixed solution is 1.04 g/mL and that the heat capacity is 4.184 J/g-K.

11. Calculate the new molarity if the following dilution is made. Assume that the volumes are additive. 450. mL of water is added to 135. mL of 0.165 M SRC12 solution SHOW WORK