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A 25.0-mL sample of 0.150 M hydrazoic acid is titrated with a 0.150 M NaOH solution. Explain what is the pH at the equivalence point? The Ka of hydrazoic acid is 1.9 x 10-5
If 1.0 mole of NOCl and 1.00 mole of Cl2 are placed in a 1.00-liter container and permitted to react at this temperture, will the reaction shift to the left or to the right
find the contact time for inactivating gardia cysts.how much contact time would be required for inactivating
Starting with 2.70 x 10^22 atoms of Tl-206, calculate the number of such atoms left after 28.5 min.
The annual production of zinc sulfide (ZnS) is 5.5e4 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal.
How many moles of glucose are required to form 8.0 moles of CO2?
Pentaborane B5H9(s) burns vigorously in O2 to give B2O3(s) and H2O(l). Compute for the combustion of 1mol of B5H9.
How much magnesium chloride would you have to purchase to make up 10.0 L of bath water saturated with magnesium chloride
It takes 47.0 J to raise the temperature of an 9.20 g piece of unknown metal from 13 degrees Celsius to 24.9 degrees Celsius. What is the specific heat for the metal
Of the calorimeter to rise from 22.00C to 34.75C. How much heat (in kJ) did this reaction release. The heat capacity of the calorimeter and its contents is 11.55kJ/C.
Find the absolute and percent relative uncertainty and express each answer with a reasonable amount of significant figures. 5.1(+-0.3) - 3.7(+-0.2) Need Numeric Result, Absolute Error, and Relative Error
A certain second-order reaction (B-product) has a rate constant of 1.25×10?3M^-1s^-1 at 27 degree celcius and an initial half-life of 264s . What is the concentration of the reactant B after one half-life
the volume of a manifold used to transfer gases is calibrated using boyles law. a 0.251-dm3 flask at pressure of 697
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