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A blood sample has an [H3O+]= 4.6 x 10^-8. Show how to determine (and then calculate) the pH, pOH, and [OH-] of this blood sample. In addition, determine if this blood sample is acidic, neutral, or basic and indicate if the pH of this sample is within the normal range for blood.
contains air at a pressure of 171 kPa and a temperature of 293 K. How many moles of air are in it? Also, how many molecules of air does it contain?
How many grams of (NH4)2SO4 should be present to prevent precipitation of Mg(OH)2 (s). The Ksp of Mg(OH)2 is 1.8x10^-11.
If the solubility of compound A in there at 0 degrees C is 2.0 g/100 mL and at 35 degrees C is 40.0 g/100 mL, how much ether would you use to recrystallize 20 g of A. What percent recovery would you expect.
How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP?
Provide the FULL mechanisms for the reaction of these three alcohols : 1) 1- butanol 2) 2-butanol and 3) 2-methy-2 propanol with a Lucas reagent
the critical point of nh3 is 132degc and 111 atm and the critical point of n2 is -147degc and 34 atm. which of these
how many moles of hcl are required to react with 0.610 g of aloh3 in the above unbalanced reaction? use at least as
how many grams of CaCl2 should be dissolved in 500.ml of water to make a 0.20m solution of CaCl2
if 77.0 mL of .150 M HCl (aq) is needed to neutralize all the NH3(g) from a 2.25 gram sample of organic material, calculate the mass percentage of nitroge in the sample.
what mass of barium is produced when molten BaCl2 is electrolyzed by a current of 3.30 105 A for 7.00 hours?
A 65.25 g sample of CuSO4•5H2O (M = 249.7) is dissolved in enough water to make 0.800 L of solution. What volume of this solution must be diluted with water to make 1.00 L of 0.100 M CuSO4
A certain lead-sulfur compound contains 86.59% Pb by mass and the remainder is sulfur. What is the empirical formula of the compound
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