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salt solution sits in an open beaker. Assuming constant temperature and pressure, the vapor pressure of the solution
a) increases over time
b) decreases over time
c) stays the same over time
d) Need to know the salt in the solution to answer this.
e) Need to know the pressure and the temperature to answer this
If a solution is made by mixing 20.0 mL 0.4 M NaCH3COO with 30 mL 0.4 M CH3COOH, calculate the pH of the solution? For acetic acid, K = 1.76 x 10-5
The partial pressure and Henry's law constants for SO2 and H2O2 are 2.7 ppm (KH = 1.2 mol L-1atm-1) and 4.9 ppb (KH = 1.0E5 mol L-1atm-1), respectively. Calculate the reaction rate of this process.
How many moles of MgI2 are in 1.3L of a 0.2M solution? How many moles of Mg2+ are in the solution? How many moles of I-?
A young child grows rapidly, with high levels of cell division and high energy requirements. If you were planning the child's diet, which food groups would you emphasize, and why? Which good groups would you deemphasize, and why?
Calculate the molality, molarity and mol fraction of a 25.4% (by mass) aqueous solution of phosphoric acid (H3PO4). in one litre of solution.
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.150 M HClO(aq) with 0.150 M KOH(aq). The ionization constant for HClO is 4.0*10^-8
What is the heat change of H 2 O If the final temperature of the mixture = 25 degree celsius?
The IR spectrum of benzoic acid is included on page 3. Assign three specific absorbance bands (from the peak list below the spectrum) to the corresponding bond vibrations
85.0 of is initially at room temperature (22). A chilled steel rod at 2 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar?
What is the characteristic of matter that causes it to expand when the temperature increases and contract when the temperature decreases?
What is the molarity of your HCl solution if it take 35.25 mL to reach the second equivalence point of a titration against 0.2225 grams of standard sodium carbonate?
What is the value of Î"Go in kJ at 25 oC for the reaction between the pair: I2(s) and Br-(aq) Use the reduction potentials for I2(s)
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