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Question- What is the final temperature in a squeezed cold pack that contains 48.5g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g??C) for the solution, an initial temperature of 28.0?C, and no heat transfer between the cold pack and the environment.
Solve the above problem in detail no word count
Give the structures as well as names including description of stereochemistry of three alkenes produced in dehydration of 3-methyl-3- pentanol.
suppose that a sample of gas occupies 73 ml of volume at 25c and a pressure of 266 torr. what would be the volume if
If you collect hydrogen over water at 767 torr total pressure and 22.3 degrees celcius what is the partial pressure of the hydrogen
The volumes are additive
What are the mole fractions of each component in a mixture of 5.10 g of O2, 7.44 g of N2, and 1.26 g of H2. O2 N2 H2 (b) What is the partial pressure in atm of each component of this mixture if it is held in a 13.70-L vessel at 12°C O2 atm N2 atm ..
In a separate experiment, it was found that for equal concentrations of element X as well as the standard the response for element X was 0.930 times intense as the standard. Explain what is the concentration of element X in the unknown expressed a..
in the titration of 50.0 ml of 1.0 m methylamine ch3nh2 kb 4.4 10-4 with 0.50 m hcl calculate the ph under the
Solid NaI is slowly added to a solution that is 0.0091 M Cu+ and 0.0077 M Ag+. Calculate the concentration of Ag+ when CuI
rank the following compounds in order of decreasing vapor pressure. rank from highest to lowest vapor pressure. to rank
Compare and contrast the accuracy and precision of at least three types of measurements used in your life
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
The Ksp of magnesium phosphate at a given temperature is 9.78 x 10-17. Calculate the molar solubility at this temperature.
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