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If you wanted to make a 100L of a 0.1M solution of HCl (aq), what volume of concentrated 12M HCl would you start with? How would you go about preparing this solution?
A solution is prepared by dissolving 297.3 g of lactose, C12H22O11, with 225.3 g of H2O at 100 degrees C. By how much lower (in mHg) will be the vapor pressure of water above this solution is compared with pure water? The solution is a non-volatil..
Calculate the molar concentration of OH - ions in an 01.33 M solution of hypobromite ion, BrO- (Kb = 4.0 10-6).
is an electron ever even momentarily found between the first and second energy levels? explain based on the wave
If 26mL of 5.2M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid? 2NaHCO3+H2SO4=Na2SO4+2H2O+2CO2
Problem- Calculate the ionic strengths of 0.01 M solutions of KNO3, Ca(NO3)2, ZnSO4, ZnCl2, K4Fe(CN)6, Fe(porphyrin)Cl.
Magnesium reacts with chlorine gas to produce magnesium chloride. How many moles of Mg will react with 2.6 moles of Cl2
Draw the alcohol produced from the acid hydrolysis of butyl acetate
considering the given equation as. cac2s2h2ol c2h2gcaoh2aq nbspin which acetylene gas c2h2 is produced a. determine
What is the concentraion of toulene in this sample? Does this exceed the standard? (maximum contaminant level is 1.0 mg/L 6) How much calcium nitrate has to be added to 1000L of solution to provide 130ppm Ca^2+ if the water supply contains 40ppm Ca..
the enthalpy of fusion of methanol ch3oh is 3.16 kjmol. how much heat would be absorbed or released upon freezing 25.6
Explain how many ATP molecules are necessary to pump 100 K+ ions out of a cell when the cytoplasmic concentration of K+ is 5 mM the extracellular concentration 150 mM and the membrane potential is constant - 60 mV
Problem- potassium perchlorate, KClO4(s) is soluble in water to the extent of 0.70 grams per 100.0 ml at 0 degrees Celsius. What is the Ksp of KClO4 at 0 degrees Celsius. FW of KClO4 is 138.55.
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