A buffer solution is 200 m in hno2 and 185 m in nano2 what
A buffer solution is .200 M in HNO2 and .185 M in NaNO2. What is the pH of the buffer system after 50 ml of .100 HCl is added to 250 ml of the buffer solution?? Ka of HNO2 = 4.6*10^4. (please show all work)
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Use the SPSS output to determine if there is sufficient evidence to conclude that Sally bakes a better pie than Pat (i.e., the average rating for Sally at her church is higher than the average rating for Pat at her church).
What are the maximun number of electrons when n=4; n=5, ml=1; n=5, ms=+1/2; n=3, l=2; n=2, l=1. Please show all work.
An equipotential line surrounds a charge distribution of known value (35 mC). Two points A and B are selected on this equipotential line separated by 3.0 cm. What is the potential difference DV between these points
Is there sufficient evidence at the alpha =0.05 level to support the researcher's claim?
Calculate the marginal propensity to consume after the change in the rate of savings for the following situation. 20 years ago the average savings rate was 20 percent of disposableincome. It is predicted that this would drop to 5 percent in lesstha
Calculate and describe the effect of changing the savings rate on the multiplier. the given problem is: 20 years agothe average savings rate was 20 percent of disposable income.
A 5.70 cm x 3.10 cm rectangle lies in the xy-plane, What is the electric flux through the rectangle if E = (50.0 i-hat + 60.0 k-hat) N/C
how much heat is transferred when 400 grams of mercury (Hg) is vaporized? specific heat (c) = 0.14J/g C, heat of fusion = 2.29 kJ/mol, heat of vaporization = 59.1 kJ/mol.
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