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A mole of hydrogen atoms contains 6.02X10^23 atoms, A section of outer space contains 25 atoms. How many moles of hydrogen is this
Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4.
What is the purpose of decalin when heating an alcohol with strong acid to produce an alkene
The average January temperature in New Orleans is 56 F. The average July temperature is 83 F. Consider a house in the city that exchanges heat with the outside in accordance with the relation dq/dt = A(To - Ti).
A pressure measuring device indicates that the blood pressure of a normal person oscillates between 120 mm Hg (at the peak of the heartbeat) and 80 mm Hg (between heartbeats).
A 300.0-mL saturated solution of copper(II) peroidate (Cu(IO4)2) contains 0.44 grams of dissolved salt. Determine the Ksp.
When is pH = pKa for a monoprotic acid and why. Write the formula for each component in a buffer solution of acetic acid and it's salt.
A 0.0050 molar solution of sugar is separated from pure water by a membrane at 20 C. What is the osmotic pressure?
Determine the amount of heat given off when 1.26 x 104 g of NO2 are produced express your answer (in kJ)?
calculate the number of joules given off when 32.0 grams of steam cools from 110.0 degc to ice at -40.0 degc. cp of h2o
a object of 50.0 grams agsilver is combined to 75.5 milliliters of nbsph2o water contained in a graduated cylinder.
How much time is required to produce 200g of aluminum metal from molten aluminum oxide dissolved in cryolite, if you use a 12amp current
The Henry's law constant of CO2 in water at 250C is 0.167x109Pa. If the partial pressure of CO2 over water is 1 bar, calculate the solubility in moles per Liter of CO2 in water at 250C. Assume the number of moles of CO2 in solution is negligible c..
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