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At a local conveience stor, you purchase a cup of coffee, but at 98 degree celsius, it is too hot to drink. you add 23.0 g of ice that is -2.2 degree celsius to 248 ml of the coffee. what is the final temperature( in degree celsius) of the coffee? ( assume the heat capacity and density of the coffee are the same as water and the coffee cup is well insulated)change of heat of fuss=6.01 KJ/mol, change of heat of vap=40.67 KJ/mol, C water=37.1/mol. 0c, speciffic heat capacity of water(l)=75.3J/mol.0c and specific heat capacity of water(g)=33.6J/mol.oc
1-A 500 mL NaCl solution is diluted to a volume of 1.24 L and a concentration of 8.00 M. What was the initial concentration C1? 2- write the total ionic equation.Be sure to include the charges on the ionic species and the physical state of all the..
An experiment was carried out similar to the one carried out to determine the empirical formula of magnesium oxide. The empirical formula for an oxide of chromium is required
What is the Volume of 0.75 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
Calculate the grams of solute needed to prepare each of the following solution. 5.5L of a 0.60M KCI solution.
This phenomenon has some very practical applications in the power plants, particularly nuclear power plants. How does this help the overall efficiency of a nuclear power plant?
Classify the following as Arrhenius, Bronsted-Lowry, or Lewis acid-base reactions. A reaction may fit all, two, one, or none of the categories. Cu^2+ + 4Cl- --> CuCl2^2-
a 2.55-g sample of a mixture of fecl2 znd feno32 is treated with excess agno3aq. the recipitate is filtered off dried
Doubling the concentrations of H2S while keeping the concentration of Cl2 constant results in the initital rate increasing by a factor of two.
In the reaction AH3 +H+ = AH4+, AH3 has a dipole moment and AH4+ does not. Predict the number of lone pairs that may exist on A in AH3. Hint: Find more than a single number of lone pairs that work.
Calculate the concentration of hydronium ions [H3O+] from the measured pH values. Express your answer in two significant figures. Show your all work.
why metal sulfide compounds can only form after the hydrothermal fluids escape into the open seawater.
When solid mercury (II) is heated, it forms solid mercury (II) oxide and gaseous nitrogen dioxide and oxygen. what is the balanced equation?
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