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Compute the heat absorbed when 46.0 g of ice at-10.0 C is converted to liquid water at 85.0 C. The specific heat of ice is 2.03 j/g c, define the molar heat of fusion of ice is 6010 j/mol as well as the specific heat of water is 4.18 j/g c.
For a particular redox reaction MnO2 is oxidized to MnO4- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
Two liters of a buffered solution are created from .55 M HC3H5O3 (Ka= 1.3 E-4) and .45 M NaC3H5O3. what is the pH of the solution?
The resulting mixture exerts a pressure of 731 mmHg at 83°C. (a) What is the partial pressure of each gas in the container (in mmHg). (b) What is the mass of the original sample (in g)
If you have 340.0 mL of water at 25.00 °C and add 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture. Use 1.00 g/mL as the density of water.
The solubility of nitrogen gas in water at 0 degree celcius and 1.0 atm is 23.54 mL per liter of the solution. (a) Calculate the Henry Law constant at 0 degree celcius
The solubility of calcium sulfate is 0.67 g/L. Show the calculation of the Ksp for calcium sulfate (all steps including chemical equilibria must be correct for full credit)
list the opportunity costs of the followinga. going to collegeb. missing a lecturec. withdrawing and spending 100 from
How many grams of methanol must be added to 7.50kg of water to lower its freezing point to -15.0^circ C? For each mole of solute, the freezing point of 1 {rm kg} of water is lowered 1.86 ^circ {rm C}
a weather baloon is filled with 195.0 L of He and launched from sea level. The baloon is designed to continue its ascent to an altitude of 30 km. If the atmospheric pressure at 30 km is 28.0 torr and temp is 41 C, what is the volume of the baloon ..
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7 Hz); ? 4.37 (1H, q, J ..
A solution is composed of ethanol and water. The solution density is 0.964g/mL. The partial molar volume of ethanol at this concentration is 52.0 mL/mol and water is 17.0 mL/mol. What is composition of liquid by mass
Nitrogen reacts with a metal to form a compound in which there are three atoms of the metal for each atom of nitrogen. If 1.486 g of the metal reacts with 1.000 g of nitrogen
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