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At a local convenience store, you purchase a cup of coffee, but, at 98.4 degrees celsius, it is too hot to drink. You add 45.9 g of ice that is -2.2 degree celsius to 248 mL of the coffee. What is the final temperature of the coffee? (ASsume the heat capacity and density of the cofee are the same as water and the coffee cup is well insulated.)
The following three solutions are mixed: 90.0mL of 0.110M Na2SO4 , 45.0mL of 0.250M ZnCl2 , and 100.0mL of 0.20M Ba(CN)2. What ionic compounds will precipitate out of solution? Express as a chemical formula.
A mixture of CS2 (g) and excess O2 (g) is placed in a 10.0 L reaction vessel at 100.0 degrees C and the pressure of 3.00 atm, A spark causes the CS2 to ignite, burning it completely, according to the equation:
The following equilibrium concentrations were measured at 800 K:[SO2]=3.0*10^-3M; [O2]=3.5*10^-3M; [SO3]=5.0*10^-2M. Calculate the equilibrium constant at 800K for each of the following reactions.
arrange the following in increasing order of mass.
On the right, it is single bonded to the C which is single bonded to each H. The other form I have is the mirror immage of this one. What is the last form
what is the percent yield of the enzyme recovered in the purified fraction. what is the degree of purification (fold purification
A hot air balloon is filled with air to a volume of 4.00x10^3 meters cubed at 745 degrees celcius. the air in the ablloon is then heated to 62 degrees celcius, causing the balloon to expand to a volume of 4.20x10^3 meters cubed.
.134 mol of KCl and .230 mole of CaCl2 were dissolved in water. Calculate the total of number of moles of Cl- of ions in the solution ?
If metallic copper forms on a strip of nickel dipped in 1M CuSO4, what conclusions can be reached about the relative strengths of Ni 2+ (aq) and/vs Cu 2+ (aq) as oxidizers
In a coffee-cup calorimeter, 1.60 g of NH4NO3 is mixed with 77.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.47°C.
A 70.6 L constant-volume cylinder containing 7.44 g Hg is heated until the pressure reaches 3.80 atm. What is the final temperature in degrees Celsius?
Salt in crude oil must be removed before the oil undergoes processing in a refinery. The crude oil is fed to a washing unit where freshwater fed to the unit mixes with the oil and dissolves a portion of the salt contained in the oil
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