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Provide detailed responses to the following.
in a coffee-cup calorimeter 1.80 g of nh4no3 is mixed with 75.0 g of water at an initial temperature of 25.00degc.
how much energy in kilojoules is required to change 47.6 g of ice at 0 degrees celcius to liquid water at the same temperature in kilocalories?
A 155-g piece of copper at 159oC is dropped into 250.0 g of water at 18.7oC. (The specific heat of copper is 0.385 J/goC.) Calculate the final temperature of the mixture.
The experiment requires 66.9 g of Fe+3 to be completely reduced by 20.8 g of Cr+3. Based on this information, what is the oxidation state of the chromium in the chromium oxide product. What is the possible chromium oxide product
lemon juice is a complex aqueous solution that does not freeze in ahome freezer at temperatures as low as -11 degc. at
Question- What is the chemical reaction to explain why the reaction mixture of 4-bromo-2-choloracetanilide and HCL forms a clear solution and then precipitate forms
the activation energy for the decomposition of hydrogen peroxide is 43 kjmol whereas when the reaction is catalyzed by
A first order reaction has a rate constant of 0.210 at 25 oC and 4.91 at 42 oC. Calculate the value of the activation energy in KILOJOULES
Use net ion equations to show how ammonium chloride (NH4Cl) is acidic and sodium acetate
(a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell. (c) What is the value of the equilibrium constant for the reaction occurring in this cell
an ideal gas is permitted to expand isothermally from two liters at 5.00 atm in two steps1 against a constant external
Explain which of the following will drive the equilibrium system to the right. The thermo chemical equation for the formation of ammonia from elemental nitrogen and hydrogen is as follows.
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