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Calculate the number of grams of Mg needed for this reaction to release enough energy to increase the temperature of 73 mL of water from 29 deg. celcius to 75 deg. celcius.
Mg(s) + 2H2O(l) --> Mg(OH)2(s) + H2 (g)
Suppose a mercury thermometer contains 3.450 of mercury and has a capillary that is 0.180 in diameter. How far does the mercury rise in the capillary when the temperature changes from 0.0C to 25.0 C? The density of mercury at these temperatures is..
Platinum exhibits an extremely intense emission line at 214.4 nm. Could the spectroscope that you used in this lab, also be used to observe this electromagnetic radiation?
From these data, and assuming that air obeys Charles's law, determine a value for the absolute zero of temperature in degrees Celsius.
An organic material is extracted from water. The separatory funnel containins 10 mL of ether and 20 mL of water. Considering that the K (partition coefficient) value is 3.2,
A 7 mL sample of a solution of K2CO3 was diluted with water to 25 mL. A 10 mL sample of the dilute solution was found to contain 0.61 M CO32-. What was the concentration of K2CO3 in the original undiluted solution
An electrical heater delivers 7.880 kJ of energy (as heat) to a system consisting of the gas inside a cylinder having a movable piston. As a result, the piston moves against a constant external pressure such
why do we have to make sure we light the fire and remove the lighter quickly to burn the nuts
I understand that benzyl bromide does react in an Sn1 reaction because the carbocation is stabilized by resonance..but what does the product look like
what shared property of alpha helices and beta sheets favors the formation of these structures in membrane spanning
A gaseous mixture of O2 and Kr has a density of 1.104 g/L at 435 torr and 300K. What is the percent of O2 in the mixture?
Determine the pH of the acid solution before the titration begins and the pH at the equivalence point when 50.0 mL of the NaOH has been added. The Ka of HF is 7.2*10^-4
Calculate the plate height (H) for a 16 cm-long column with a stationary phase particle diameter
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