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The temperature of a student's skin is 33.0°C. At what wavelength does the radiation emitted from the skin reach its peak? µm
negative or about 0. For each, indicate whether the process is always spontaneous, never spontaneous, spontaneous at high temperature or spontaneous at low temperature.
Problem- At 850 K, The value of the equilibrium constant Kp for the ammonia synthesis reaction is 0.4250. If a vessel contains an initial reaction mixture in which [N2] = 0.0150 M, [H2] = 0.0250 M, and [N2H2] = 0.000100 M, what will the [N2H2] be ..
two moles of he gas are at 23 degrees c and a pressure of 220 kpa. if the gas is heated to 44 degrees c and its
In what volume of solution must 31.7g of oxalic acid ( H2C2O4) be dissolved to make a solution that is 0.0859 M in oxalic acid
Gold has a density of 19.3g/ml .suppose you have 100.0 glonkins of gold., what volume in liters will the gold occupy.
A sample of argon gas occupies 125 L at 22C and .975 atm. What volume will it occupy at 60C and .825 atm?
the hydrocarbon contains 93.75 carbon and 6.25 hydrogen. calculate its empirical formula.from your empirical formula
Write an equation for the equilibrium reaction and a K expression. Solve for the pH of the solution.
What mass of sodium azide is required to provide the nitrogen needed to inflate a 47.0 L bag to a pressure of 1.2 atm at 47 C.
Dehydrohalogenation of (2R, 3R)-2-bromo-3-methylpentane by a bimolecular reaction produces only (E)-3-methyl-2-pentene and 3-methyl-1-pentene as products. Provide a mechanistic explanation as to why (Z)-3-methyl-2-pentene is not formed.
An aqueous solution is 13.0% by mass ethanol, CH3CH2OH, and has a density of 0.978 g/mL. The molality of ethanol in the solution is?
Vinegar Is a solution of acetic acid dissolved in water. a 5.54 g sample of vinegar was neutralized by 30.10ml of .100 M NaOH. What is the percent by weight of acetic acid in the vinegar
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