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A 50mL sample of .400 M CuSO4 at 23.35 C is mixed with 50.0 mL of .600 M NaOH at 23.35 C in a calorimeter with C = 24.0 J/C. The temperature after the reaction is 25.23 C. If the density of final solution is 1.02 g/mL, calculate q, if the specific heat of the solution can be assumed to be equivalent to that of water.
Calculate the concentration in ppm of a pollutant that has been measured at 450 mg per 150 kg of sample.
What is the minimum potential (V) required to produce both the oxidation and reduction products written above?
in ploystyrene beaker , we mixed 30 mL of 0.1 M sodium acetate and 15 mL of 0.1 M hydrocloric acid. we measured the PH it was 4.86
how many moles of Ba(OH)2 are present in 165ml of 0.600M Ba(OH)2.
A particular sample of red brass consisting of 81.0% Cu and 19.0% Zn by mass has a density of 8780 kg/m^3. What is the molality of Zn in the solid solution?
296K(temperature), if you placed 2.58g of CrCl3*6H2O in a graduated cylinder and attempted the same experiment, what ?m would ypu observe?
Consider the following unbalanced reduction half equation. MnO4-+H=+e- > Mn2++H2O. How many H= are needed for the balanced half-equation.
Trimyristin can be synthesized from glycerol and tetradecanoic acid in 87% yield. If 25.00 g of trimyristin is needed, what amount of both starting materials (in grams) would need to be used in order to provide the needed amount of trimystin?
Calculate the molality of potassium iodide. Assume that the density of water is 1.000 g/mL. Please show all calculations in solving the problem
What ions and/or molecules are present in relatively large proportions in a solution of a weak acid H2S (aq)?
KEtones also undergo the aldo condensation, although a succesful reaction often requires "enhanced" conditions, since the addition involves an unfavorable equilibrium constant.
A voltaic cell is constructed by immersing a strip of silver in a 1.0M AgNO3 solution and a strip of cadmiun metal in a 1.0M Cd(NO3)2 solution. The circuit is completed by a wire and a salt bridge in the usual way. What is the cell potential for t..
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