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Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC Delta T to calculate the temperature change of the 304 g of water.
The following acid-base reaction is performed in a constant pressure calorimeter. H+ (aq) + OH-(aq) ? H2O (l) ?H=-57. 32 kJ/mol The temperature of 1000.0 g of water rises from an initial temperature of 24.5 °C to a final temperature of X °C when ..
A scientist wants to make a solution of sodium phonsphate for a lab experiment. How many grams of sodium phosphate will be needed to produce 475 ml of solution that has a concentration of Na+ ions of 1.50 M?
Calculate K for 2NO(g)+O2(g)=2NO2(g) from the observation that when equilibrium is established at 500K, there are 0.190 moles NO2, 2.65x10^-4 moles NO, and 0.606 moles O2 in a volume of 0.759 liters.
One of the reasons that back titration is preferred to direct titration is because of the limited solubility of carbonates in water. Why does this make direct titration difficult and why does back titration tend ot circumvent this difficulty
Suggest to her a visual functional test that she can use to detect the presence of an alkene. Explain why it is specific for alkenes in this situation.
calculate the number of microstates, W, that have this energy. Make sketches of these microstates. Calculate the corresponding entropy for each state.
How can you determine whether a molecule or ion will exhibit delocalized bonding?
A sample of 255mg of neon occupies 3.00dm3 at 122K. Use the perfect gas law to calculate the pressure of the gas.
Write the balanced chemical equation that represents the addition of CL2 to CH3CH=CH2.
0.000333 g fluorescein (332.32 g/mol) is dissolved in 225 mL solution of ethanol. The density of ethanol is 0.785 g/mL. What is the concentration of the solution in molarity (M)
Calculate delta s for reversibly heating 2.000mol of liquid water from 0.00C to 100.00C at a constant pressure of 1.00atm. the specific heat capacity of liquid water is nearly constant and is equal to 1.00cal/kgm or 4.18j/kgm
If a mixture containing 1.0 moles of A, 4.0 moles of B and 6.0 moles of C is allowed to react according to the equation: 2A + 2B + 6C ? 4D + 3E
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