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Consider the reaction: 2 A + B + 2452 J --- 2C at 25 celcius. The entropy change dor the reaction is 10.0 J/k. At what temperature would you expect it to be spontaneous?
M.r eric castilo purchased alot for PH 1300000 and sold them 2 years later for PH1900000. At what rate did his money earn?
Calculate the work of expansion of the gas in joules (1 J = 9.87 10-3 atm·L). Assume all the energy is used to do work.
If a radiation source has an intensity of 650 rem at 1.0 m, what distance is needed to decrease the intensity of expo- sure to below 25 rem, the level at which no effects are detectable
A helium-filled weather balloon has a volume of 815 L at 22 oC and 752 mmHg. It is released and rises to an altitude of 7.16 km, where the pressure is 364 mm Hg and the temperature is -25oC
phosphoric acid can be prepared by reaction of sulfuric acid with phosphate rock according to the equation ca3po42
a 1.50-liter sample of dry air in a cylinder exerts a pressure of 3.0 atmospheres at a temperature of 25degc. without
Wastewater flow in a sewer can be estimated by adding a known amount of tracer such as salt solution and measuring the salt concentration upstream and downstream of the point of addition.
When 1.5173 of an organic iron compound containing C, H, O, and Fe was burned in O2, 2.838 g of CO2 and 0.8122 g of H2O were produced. In a separate experiment to determine the mass
A 28.0-g sample of water at 290. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Cinsider the reaction 2KCl3(s) --> @Kcl(s) + 3O2(g) How many grams of oxygen are produced from the complete reaction of 23.8g of KCL3? How many molecules are present in 1.80g of C6H8O6
What wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction. Explain. (Compare to benzaldehyde, 4-methylbenzaldehyde, 4-methoxybenzaldehyde, 4-chlorobenzaldehyde, and 2-nitrobenzaldehyde.
when 0.250 mol of ch4g reacts with excess cl2g at constant presure according to the chemical equation shown bellow 177
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