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We want to change the volume of a fixed amount of gas from 725ml to 2.05L while holding the temperature constant. To what value must we change the pressure if the initial pressure is 110kpa?
If 0.00523 mol N2O(g) effuses through an orifice in a certain period of time, how many moles of N2O5(g) would effuse in the same time under the same conditions
How many moles of H2SO4 must be present to react completely with the NaOH delivered from the buret.
25.0 mL of ethanol (density = 0.789 g/mL) initially at 5.4°C is mixed with 34.6 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
Use the Nernst equation to calculate the Cd2+ concentration when given cell potential of +0.768V and Mn2+ concentration of .500M
Hydrogen sulfide decomposes according to the following reaction, for which Kc = 9.30 10-8 at 700°C. 2 H2S(g) 2 H2(g) + S2(g) If 0.33 mol H2S is placed in a 4.7 L container
XeF6+3H2O-->___+6HF What is the missing gas oxide? I tired to input XeO3 but that was incorrect.
What is the final concentration (in M) of 18.5 mL sodium chloride solution with an initial concentration of 1.78 M which is diluted with 15 mL of solvent? Assume the volumes are additive.
How much heat is released to the surroundings when 1.5 moles of water cools from 150 to 20 at 1 atm? Note that the constant pressure heat capacities, , for water in vapor and liquid form are 36.4 and 75.3 respectively.
A sample of an unknown gas effuses in 10.1 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.16 min. What is the molar mass of the unknown gas
When Mg-EDTA is added to a sample to compensate for a lack of Mg^+2, why is no blank correction necessary
Based on the force vs atomic spacing and energy vs atomic distance curves explain why some materials have high strength and high melting temperatures
Use this equation Keq= [FeSCN^2+]/[Fe^3+][SCN^-] to calculate the concentration of Fe^3+ and SCN^- in a solution that has an equilibrium FeSCN^2+ concentration of 4.5 x10^-5 M.
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