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If you were monitring the titation by visible spectroscopy, what wavelength would you select for the data analysis? Why? How would you determine the endpoint of the tittaion based on the the recored visible spectra rather than they eye.
What mass of natural gas {rm{(CH}}_4 ) must you burn to emit 268 kJ of heat?
complete and balance the following redox equation. What is the coefficient of H2O when the equation is balanced using the set of smallest whole-number coefficients
Calculate the empirical formula for the following compound: potassium tartrate found in baking powder: 20.8% K, 2.7% H, 25.5% C, and 51.0% O
explain the apparent paradox. although the addition of one equivalent of HX to an alkyne is more exothermic than the addition of HX to an alkene, an alkene reacts faster
To a solution that is known to contain come of the soluble ions from group 1 and no other cations or inteferring substances, 12 drops of 6M hydrochloric acid is added and no precipoiate forms.To clear solution is evaporated to half its volume and ..
Describe how collecting pressure and temperature data in a sealed rigid container could be used to determine absolute zero
Number of exhaled molecules, Total mass of the atmosphere is equivalent to that in a layer 7 kilometer deep with density equal to the density at the surface
An unknown alcohol of molecular formula C4H10O forms only one alkene when treated with sulfuric acid. No reaction is observed when the alcohol is treated with oxidizing reagent. Draw the structure of the alcohol.
What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3
A solution is prepared by adding 0.900 g of solid \rm NaCl to 50.0 mL of 0.100 M \rm {CaCl_2}. What is the molarity of chloride ion in the final solution. Assume that the volume of the final solution is 50.0 mL.
Calculate the work, w, and energy change, ?Urxn, when 20.51 g of Cu2O(s) is oxidized at a constant pressure of 1.00 bar and a constant temperature of 25°C.
Complete and balance this equation (show all work clearly, particularly each 1/2 reaction). What is the reducing or oxidizing agents - label each
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