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A bacterial culture isolated from sewage produced 35.5 mL of methane, CH4, at 31 oC and 753 mmHg. What is the volume of this methane at STP?
How much energy is needed to heat 69.0 grams of H20(s) by 24.0 celcius if specific heat is 2.087 J(g celcius)
An acid solution is 0.100 M in HCl and 0.190 M in H2SO4.What volume of a 0.150 M KOH solution would have to be added to 550.0 mL of the acidic solution to neutralize completely all of the acid?
What would be the pH of a solution prepared by combining equal quantities of NaH2PO4 and Na2HPO4? Explain. 2. Sufficient strong acid is added to a solution containing
What is the equilibrium constant, K, of the following reaction given the following equilibrium conditions
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
For the analyte with pka= 5.6 and 60/40 acetonitrile/water eluent composition what should be the pH of an aqueous portion of the mobile phase to ensure complete ionization
How are excess sulfuric acid and the excess methanol removed from the crude ester after the reaction has been completed. Why was 5% NaHCO3 used in the extraction. What would happen if 5% NaOH had been used
A gaseous mixture of and contains 39.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 545
Draw complete Lewis structure for following condensed structural formula. (CH3CH2)CO
A sample of 0.0020 mole of HCl is dissolved in water to make a 1500. mL solution. Calculate the molarity of the HCl solution, the [H3O+], and the pH. For a strong acid such as HCI,.
Determine the rate constant for each of the following first-order reactions. In each case, write the rate law for the rate of loss of A. a) 2 A B + C
When a 5.8 g serving of cereal burns in the same bomb calorimeter, the temperatrue of the calorimeter increases by 1.92 C. Calculate the fuel value of the cereal in kj/g.
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