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An ice cube tray holds 455 g water. If the water initially has a temperature of 33°C, how many kilojoules of heat must be removed to cool and freeze the water at 0°C?
Wet steam flows in a pipe at a pressure of 700 kPa. To check the steam quality, the wet steam is expanded to pressure of 100 kPa. The expansion process may be assumed to be isenthalpic
What chemical features and properties of detergents make them better than soap for hard water application?
Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation.
Using the following data, calculate the V/T ratios and determine if Charles'Law is obeyed (verified). Volume hot dry air - 137.0 ml Volume water drawn into flask - 32.0 ml Temp. boiling water - 99.5 oC Temp.
AS you get to the mountains the temp drops to -1C and 0.70 atm. If the volume of air in the tires is 12L when you left the city, what will it be in the mountains
if you had excess chlorine how many moles of of aluminum chloride could be produced from 17 grams of aluminum
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated
CaC2(s) + 2H2O(l) = C2H2(g) + Ca(OH)2(aq) . If 34 g of CaC2 are consumed in this reaction, how much H2O is needed?
A 75.0 mL sample of acetic acid (HC2H3O2) is titrated to the equivalence point with 25.0 mL of 0.400 M NaOH. What is the molarity of the acetic acid solution?
You have 200 moles of nitrogen in a cylinder,(having a weightless,frictionless piston). The initial temperature is 298k. The diameter is 0.5m. and the piston is at a height of 1m.
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.220 M HClO(aq) with 0.220 M KOH(aq). The ionization constant for HClO
what mass of Mg is formed from molten MgCl2 if a current of 1.8 amps is passed through the sample for 16.7 hours
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