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The Fahrenheit temperature scale is defined so that ice melts at 32°F and water boils at 212°F.
(a) Derive the formulas for converting from Fahrenheit to Celsius and back.
(b) What is absolute zero on the Fahrenheit scale?
In the occurrence of aqueous ammonia, cobalt(III) forms the complex ion Co(NH3)63+. Find out the molar concentration of free cobalt(III) ion in solution when .220 mole Co(NH3)63+ is dissolved in a liter of 2.50M aqueous ammonia.
An unknown monoprotic weak acid, HA, has a molar mass of 55.0. A solution contains 2.50 g of HA dissolved 800. mL of solution. The solution has a pH of 2.000. What is the value of Ka for HA
Aqueous solutions of chromium(III) chloride and lithium hydroxide react to give aqueous lithium chloride and a chromium(III) hydroxide precipitate.
When 1.550 g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.87 ºC to 38.13 ºC. Find ?E rxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate e..
consider the titration of 100.0 ml of 0.100 m h2nnh2 kb 1.8 multiplied by 10-5 by 0.200 m hno3. calculate the ph of
What is the enthalpy change corresponding to the melting of 2.5 moles of H2O? What is the system? What is the surrounding?
assume that you have 1 2 5 and 10 ml pipets and a 25 ml volumetric flask. describe in detail how you would prepare a
Explain which of the subsequent will cause the volume of an ideal gas to triple in value. Increasing the temperature from 25°C to 75°C at constant pressure.
Problem- Write the mechanism for the hydroxide ion catalyzed reaction between cyclopentanone and benzaldehyde.
a solution contains 100.0 g of water and 15.0 g of alcohol. what is the percent alcohol in the solution? my teacher got
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
How much energy (in calories) is needed to heat 17cm^3 of fat from room temperature (25 C) to its melting point (35 C)?
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