Problem related to specific heats
Question: Substances A and B are the same mass and at the same initial temperature. When they are heated, the final temperature of A is 55 degree C higher than the temperature of B. What does this tell you of the specific heats of A and B.
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The molar (or milli or micro molar) concentration of adenosine when 3ul of the 0.4% control is dissolved in 3 ml of 1 M HCl is?
What will the new pressure be when the volume expands to 5.0L and 3.0 mol of helium gas is added while the temperature is constant?
Calculate the equilibrium constant at 24 K for a reaction with ?Ho = 10 kJ and ?So = (-100) J/K. (Don't round unil the end. Using the exponent enlarges any round-off error.)
Provide a Lewis structure, including resonance if appropriate, and non zero formal charge, for ICl2-
CO(g) + NO2(g) ------> CO2(g) + NO(g) rate= k(NO2)^2 Suggest a plausible mechanism for the reaction, given that the unstable species NO3 is an intermediate.
Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH = 10.10 [CH3NH2]/[CH3NH3CL] = ? I know that the answer is 0.34 but is not wright to write it in this way in mastering chemistry and they are errors in the submission
The Ksp of magnesium phosphate at a given temperature is 9.78 x 10-17. Calculate the molar solubility at this temperature.
A bottle of vinegar has an acetic acid concentration of 0.78M. What are the equilibrium concentrations, the pH and percent ionization of the acetic acid?
Sulfurous acid, H2SO3, is a weak diprotic acid (pKa,1=1.89 and pKa,2=7.21 at 25oC). What is the pH of 0.121 mol/L H2SO3(aq) at 25oC
Calculate the value of Kp for this dissociation reaction at 25 oC. b)If the volume of the cylinder is increased until the total pressure is 1.0 atm andthe temperature of the system remains constant, calculate the equilibrium pressure of N2O4(g) an
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