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For a particular reaction, ?H° is 73.5 kJ and ?S is 193.7 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction? T = ____K
Explain why dimerization of the cyclopentadiene is the side reaction and discuss how to avoid this side reaction.
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
The following plot shows experimental data from a reaction. What is the third half life of the reactions if the slope of the plot if 0.0023 1/M*s and the y-intercept is 0.45 1/M ?
a gas mixture with a total pressure of 765 g contains each of the following gases at the indicated partial pressures
The alpha-particles ionize molecules in the air, allowing it to conduct an electric current. When smoke particles enter, the conductivity of the air changes and the alarm buzzes. (a) Write the equation for the decay of (mass number 241, protons 95..
When heated, lithium reacts with nitrogen to form lithium nitride: 6Li (s) + N2 (s) ----> 2LiN 9s) If 12.3 g of Li are heated with 33.6 g of N2: a) Determine the limiting reactant b) What is the theoretical yield of the reaction
Suggest why Po-210 and At-211 are the isotopes of those elements with the longest half-lives.
200g of magnesium phosphate and 250.0g of copper bromide react, how much copper phosphate will be produced?
How many grams of dry NH_4Cl need to be added to 2.10 L of a 0.700 M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.79? K_b for ammonia is 1.8 times 10^{-5}.
Determine the final temperature of the mixture. (Use 1g/mL as the density of water)
what is the formula of the compound formed between strontium ions and nitrogen ions?a srnb sr3n2c sr2n3d srn2e
the equilibrium constant kc for the reactionpcl3g cl2g pcl5gnbspis 49 at 230degc. if 0.70 mol of pcl3 is added to 0.70
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