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Question: Dilute sulfuric acid (19% acid, the rest water) is required for activating car batteries. A tank of weak acid (12.5% concentrate, the rest water) is available. If 450 lb of 78% concentrate acid is added to the tank to get the required 19% acid, how much of the 19% acid is now available?
An aqueous solution of unoxygenated hemoglobin containing 5 g of protein (M= 64000 g/mol) in the 100cm3 of solution is placed in an insulated vessel.
A 1-L flask is filled with 1.20g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.15 atm. A) What is the partial pressure of argon, P Ar , in the flask
What external pressures have moved mainstream medicine to accept alternative therapies? Have any alternative therapies been proven to work as well as standard treatments? Support your answer with information from the reading materials and/or inter..
Suppose In the titration of an impure sample of KHP, it was found that 36.0mL of .100M NaOH was needed to react completely with 0.765g of sample. Explain what is the percentage of KHP in this sample
Decrease how the addition of the silver nitrate to the Fe3+/SCN- equilibrium system had an effect though neither Ag+ nor No3- appears in the equation Fe3+(aq) +SCN(aq) (double arrow means equilibrium) [FeSCN]2+
Thermal measurements show that deltaH for the I---->II phase transition is -743.1 J/mole, and deltaS for the same transition is -17.0 J/K/mole. At what temperature are solids I and II in equilibrium
Diazomethane has the following composition by mass: 28.57% C, 4.80% H, and 66.64% N. The molar mass of diazomethane is 42.04 g/mol. Find the molecular formula of diazomethane and draw its Lewis structure.
Find the partial pressure of each produce and the total pressure in the flask at the end of the reaction.
Barbituric acid, HC4H3N2O3.... Its pKa is 4.01. What is the [H+] and pH of a 0.044 M solution of H-Bar
CaC2(s) + 2H2O(l) = C2H2(g) + Ca(OH)2(aq) . If 34 g of CaC2 are consumed in this reaction, how much H2O is needed?
Choose the answer which presents the chemical formulas for two substances in order of decreasing melting point (highest melting point first) and gives a valid reason for this order.
Write a short article about how chromatography is used in every day life. I've been unsuccessful finding much information on exactly how and why it is used for any specific task
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