Calculate calorimeter constant in joule per degree celsius
Consider 25.0 g of water at 21.7°C that are mixed with 25.0 g of water at 43.3°C in a foam cup calorimeter. The equilibrium temperature reached was 30.4°C. Calculate the calorimeter constant in J/°C.
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A solution is prepaired by mixing 90.0 mL of 5.00 M HCl adn 30.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH-], and the pH of this solution.
There is a way for natural gas fuel cells to be considered a low-carbon energy source, but they have to get their fuel from a specific source. What is that source, and why does that qualify as a low-carbon source of energy?
A circular specimen of MgO is loaded using a three point bending mode. Compute the minimum possible radius of the specimen without fracture, given that the applied load is 5560N, the flexural strength is 165 MPa. and the separation between
One question: During each cycle, the velocity v (in mm/s) of a piston is v = 6t - 6t^2, where t is the time (in sec). Find the displacement s of the piston after 0.75 sec if the initial displacement is zero.
Dichloromethane has a vapour pressure of 10 Torr at -43.3 deg C and 40 Torr at -22.3 deg C. Calculate its enthalpy of vapourization in kJ/mol.
The density of liquid water at 0 degrees C is 0.9987 g/cm cubed; the density of ice at this same temperature is 0.917 g/cm cubed.
A mixture of gases contains 0.26 mole CH4, 0.38 mole C2H6, and 0.18 mole C3H8. The total pressure is 1.50 atm. Calculate the partial pressures of the gases.
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