What mass of this substance must evaporate
What mass of this substance must evaporate in order to freeze 190 of water initially at 24? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
Expected delivery within 24 Hours
A gas is placed in a storage tank @ a pressure of 30.0 atm @ 20.3oc as a safety device there is a small metal plug in the tank of a metal alloy that melts @ 130oC.
The enthalpy of fusion of methanol is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol.
Predict the physical state of ammonia at -50 degrees C (Mp=-77 degrees C, Bp=-33 degrees C) and normal atmospheric pressure
The variables were people who visit Starbucks to make a purchase for coffee daily and weekly.The other variable was the types of coffee blends offered by Starbucks.Using the research question and two variables your learning team developed for the W
If the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.250 M, what is the concentration of the base in the flask?
The flask was then shaken until the solution was uniform. A 45.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
What is Ka for this acid?When 0.050 mol of propionic acid, C2H5CO2H, is dissolved in 300 ml of water, the equilibrium concentration of H3O+ ions is measured to be 1.37 x 10-3 M. What is Ka for this acid?
Assuming ideality of the solution and the vapour, calculate the ratio of the vapour pressure of pure A to that of pure B.
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