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Calculate the temperature change in the water upon the complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC \Delta T to calculate the temperature change of the 275g of water.
Calculate the pH of 9.2E-8 M NaOH, ignoring activity coefficients. Report the pH using the correct number of decimal places.
Two readings (initial volume and final volume) are required to deliver a specified volume of titrant. For a delivered volume of 6.25 mL, compute the uncertainty in the volume of titrant delivered.
Calculate the PH of the cathode compartment solution if the cell emf at 298K is measured to be 0.660V when (Zn^2+)=0.22 M and(P_H2)= 0.87atm
a cylinder of compressed nitrogen gas contains 867 g n2. if the volume of the cylinder is 22.5 l what is the pressure
When conducting recrystallization, the recrecrystallizing solvent must have certain characteristics (in terms of how its acts on the target sample and the contaminants)
What is the rate of reaction of O2? What is the rate of formation of N2O5?
Calculate the volume of chlorine gas in liters, measured at 20 C and 762 mm Hg, required to react with this volume of seawater.
The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10-3 min -1. How long will it take for a concentration of H2O2 to drop from .0200M to .0120 M
The temperature of a 35.2 g sample of iron increases from 23.7 °C to 29.5 °C. If the specific heat of iron is 0.450 J/g-K, how many joules of heat are absorbed?
The bottle is then brought outside and stored at 0.0°C. (a) What mass of liquid water condenses inside the bottle?
How many grams of pure solid PbCl2 could be formed from the reaction of 5.176 g of lead with excess HCl?
What is the purpose of washing your cyclohexene with saturated sodium bicarbonate. Why do you think it is more practical to wash with a solution instead of adding solid sodium bicarbonate to your cyclohexene
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