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A rigid plastic container holds 1.00 L methane gas at 630 torr pressure when the temperature is 20.3°C. How much more pressure will the gas exert if the temperature is raised to 44.3°C?
electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is
sample of 30.0 ml of krypton gas kr is at 756 mm hg and 25.0 degree celsius. what is the new volume if the pressure is
The double-replacement reaction between silver nitrate and sodium bromide produces silver bromide, a component of photographic film. (A) If 4.50mol of silver react, what mass of sodium bromide is required?
Draw a hypothetical titration curve and label the points where .5 equivalents, 1.0 equivalents, 1.5 equivalents, and 2.0 equivalents of base have been added. What is the relative concentration of [H2A], [HA-], and [A2-] at each of those points?
Gold has cubic crystals whose unit cell has an edge length of 407.9 pm. The density of the metal is 19.3 g/cm3. Calculate the number of gold atoms in a unit cell. What type of cubi lattice does gold have
Consider the following reaction to answer the questions below. 2H2S (g) + SO2 (g) ?? 3S (s) + 2H2O (g) ?H° = -145 kJ. At what temperature would the forward reaction become non-spontaneous
Enough of a monoprotic acid is dissolved in water to produce a 0.0166 M solution. The pH of the resulting solution is 2.38. Calculate the Ka for the acid.
A 1.678 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.143 g CO2 (g) and 2.456 g H2O (l) on complete combustion. This particular compound is also found to be an alkane with one methyl group attached to..
Nitric acid is usually purchased in a concentrated form that is 70.3% HNO3 by mass and has a density of 1.41 g/mL. How much concentrated solution would you take to prepare
Why is the dissolving of salt sometimes an exothermic and sometimes an exothermic process
Adding ammonia to a solution containing copper ions... Answer can be multiple removes the copper from the solution by forming a precipitate. increases the copper concentration by shifting the reaction toward the reactants.
Draw the molecular-orbital-energy level diagram for the SO molecule and the NF molecule
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