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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 the solubility of nitrogen is blood is 1.90 cc per 1.00 atmosphere, what is the solubility of nitrogen is a scuba diver's blood at a depth
Ethane, C2H6, has a molar heat of vaporization of 15 kJ/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?
The ester ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution than ethyl p-methyoxybenzoate.
A sample of sodium reacts completely with 0.355 of chlorine, forming 585 of sodium chloride. What mass of sodium reacted?
if 100 mL of 0.100 M NaCl is added to 100 mL of .01 M NaCl, what is the concentration of Na ions in the final solution?"
A 23.1 g sample of pure iron at 95°C is dropped into 78 g of water at 17°C. What is the final temperature of the water-iron mixture?
the molar heat of combustion of methanol, CH3OH, is -757kJ/mol. If 2g of methanol is placed in bomb calorimeter with heat capacity of 6.5 kJ/c, what is the temperature rise when the sample is combusted?
It takes 46.0 to raise the temperature of an 10.9 piece of unknown metal from 13.0 to 24.7. What is the specific heat for the metal?
Use the graph from the Introduction that plots the density of ethanol solutions from 20 to 60 mass percent to answer the following questions:
what volume of oxygen gas will be collected if a 5gram sample of potassium permanganate decomposers at 25 degrees celcius and 1 atmospheric pressure?
how many grams of co2 are generated when 98.5 grams of aluminum oxide form, according to the equation al2(co3)3=>al203+3co2
Phosphoric acid is a weak triprotic acid with the formula H3PO4. If you have 50.0 mL of a 1.0 M solution of H3PO4, how many grams of NaOH (MM = 40.0g/mol) should you add to make a buffer with a pH of 7.00?
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