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Julie is conducting an experiment where she placed 30.0 mL of water in a calorimeter at 10.0 °C. Then, 2.5 g of A (molar mass = 48.0 g/mol), also at 10.0°C, is added to the water in the calorimeter and the temperature of the solution increases to 29.0 °C. The following reaction is produced:
a.) What is the enthalpy of the reaction (ΔH°rxn), in kJ/mol?
what will the concentration of all the reactants and products be when the reaction reaches equilibrium at 527 degrees C?
Two samples of copper and lead both weighing 1.500g each recive equal amounts of heat. The temp. of copper increased from 25.0 degrees celcius to 30.0 degreees celcius.
Problem- A researcher attempted this reaction with H2SO4 instead of H3PO4 and noticed a 3rd product. How did this product form from just switching the acid catalyst?
Explain treatment of a 0.4-g sample of impure potassium chloride with an excess of AgNo3 resulted in the formation of 0.7332-g of AgCl. Compute the percentage of KCl in the sample
show the path an electron takes when orbiting an atom describe regions of space in which one is most likely to find an electron.
What is the total number of valence electrons that must be shown in the Lewis structure for magnesium fluoride B. How many dots would be shown in the Lewis symbol for phosporus. Use a number, not a word.
Water flowing through pipes of carbon steel must be kept at PH 5 or greater than limit corrosion if an 8.0 *10^3 Ib/hr water stream contains 10 ppm sulfuric acid and 0.015% acetic acid, how many pounds per hour of sodium acetate trihydrate
how many grams of silicon tetrafluoride gas at room temperature would fill the same volume as that occupied by 440
if 69.5 kj of heat is applied to a 1036 g block of metal the temperature of the metal increases by 11.4degc. calculate
the corresponding sound. If you are 480.0 m from the explosion and the speed of sound is 340 m/s, calculate the distance traveled by the light during the brief delay required for the sound to reach
a triprotic acid h3a has three ionization constants of ka1 8.7x10-3 ka2 1.9x10-8 and ka38.6x10-13 for the steps
In a battery, water is used as a salt bridge, and the two electrodes are Carbon and Aluminum. Find the standard reduction potential of the battery, and indicate which electrode is the cathode and anode.
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