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If a 5.7 g ice cube is placed in 350.0 mL of warm water, what is the change in temperature of the water after the ice has completely melted? The enthalpy of fusion of water is 6.02 kJ/mol, and the specific heat capacity of the liquid is 4.184 J/g/K. Assume that the amount of extra water produced by the melted ice is negligible.
Calculate the theoretical yield of C2H5Cl when 139 g of C2H6 reacts with 232 g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl .
a flask contains 30mL of 0.16 M phosphate buffer that has a pH of 7.1. what volume of 0.06M NaOH should be added to increase
The equilibiurm constant Kc for the reaction below is 4,2 at 1650 degrees Celcius. H2(g)+CO2(g)---->H2O(g)+CO(g). Initially 0.80 mol H2 and 0.08 mol CO2 are injected into a 5.0-L flask
What is the probability of locating an electron between x = 0 and x = 0.2 nm in its lowest energy state in a conjugated polyene molecule
The barometric air pressure that day was 733 mm Hg. What is the pressure of the vapor inside the flask (in atmospheres) after the vapor had cooled and the students opened the flask momentarily?
Determine what given process is occurring when the color appears in the flame and an electron emits energy and it makes a transition to a higher energy orbital.
Which of the following types of radiation is composed of particles with a charge and mass identical to that of an electron?
Using standard reduction potentials, calculate the equilibrium constants for the following reactions.
Suppose that 180 g of ethanol at 26 ? C is mixed with 225 g of ethanol at 83 ? C at constant atmospheric pressure in a thermally insulated vessel.
You prepared a 0.250 M solution by diluting 8.45(+-0.04)mL of 28.0(+-0.5)mL wt.%NH3 (density=0.899(+-0.003)g/mL up to 500.0(+-0.2)mL. Find the uncertainty in 0.250 M.
What is the volume percent concentration of (a) 35.0mL of water in 725mL of an ethanol-water solution,and (b) 78.9mL of acetone in 1550
Find out How many grams of gasoline will fill a 12.5gal tank if a particular brand of gasoline has the density of 0.737 g/mL at the temperature of 25 degree Celsius?
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