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For this picnic, you need to feed at least 500 people. If you want to feed everyone, but still have equal numbers of buns and hot dogs, what is the minimum number of packages of buns and hot dogs you need, respectively?
How to carry out a calorimetry experiment to determine the delta H for the exothermic reaction of Ca(OH)2 (s) and HCl (aq). Predict how each of the following will affect the calculated value of Delta H.
An equilibrium mixture in a 2.00 L vessel is found to contain 0.0406 mol CH3OH, 0.170 mol CO, and 0.302 mol H2 at 500 K. Calculate Kc at this temperature.
What is the final river temperature downstream? Assume that the density of the waste stream is 1000 kg/m3.
When ethyl benzoate is heated in methanol containing a small amount of HCl, methyl benzoate is formed. Draw structural formulas for the first two intermediates in this reaction.
The heat of formation of Al2O3(s) is -1669 kJ/mol. Calculate the heat evolved when .267 g of Al burns in oxygen.
Explain a wavelength of 925.4 nm has been detected from the emission of a hydrogen gas tube while under excitation from a high voltage source in a lab. This was caused by an electron dropping from a higher voltage source.
an ice cube tray holds 515 g water. if the water initially has a temperature of 21degc how many kilojoules of heat must
Write a balanced chemical equation for the reaction of 4-Nitrobenzaldehyde and sodium borohydride (NaBH4). If 0.21 g of 4-nitrobenzaldehyde dissolved in 10 mL of methanol is mixed with 0.14 g of sodium borohydride, what is the theoretical yield?
A compound having a specific rotation of [?] = +40.3° has been isolated and purified. This information indicates that the natural compound: a. is racemic. b. does not rotate plane-polarized light. c. is levorotatory. d. is dextrorotatory
Q 3: The salt NaBrO(3) oxides Sn^2+ to SnCl(6)^2- in the presence of hydrochloric acid according to the equation
Write an equation for the reaction of iodine in aqueous solution to form iodate ion and iodide ion under acidic conditions, then calculate the electrochemical potential for the reactionPlease write out half reactions and include as much work as possi..
How many grams of aluminum oxide are produced when 50.3g aluminum react, When 0.510 mole aluminum is reacted in a closed container with 7.90g oxygen, how many grams of aluminum oxide can form?
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