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Choose the selection which lists the following substances in order of increasing boiling point (lowest boiling substance listed first):
CBr4, GeCl4, and SF6
a) SF6 < CBr4 < GeCl4b) GeCl4 < SF6 < CBr4c) SF6 < GeCl4 < CBr4d) CBr4 < GeCl4 < SF6e) GeCl4 < CBr4 < SF6
A student mixes 347 mL of water and 254 mL of 8.70 x 10-5 M greenfood dye solution. What is the concentration of this new dilute solution of green food dye?
what is the limiting reactant when 3.41g of lithium with 2.79g of copper II nitride?predict the products, write a balanced equation, calculate the limiting reactant.
What volume of 2.0 M NaClO must be diluted with water to prepare 500.0 mL of 0.10 M NaClO?
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
Calcium in a mineral was analyzed five times by each of two methods. Are the mean values significantly different at the 95% confidence level? Method1: 0.0271 0.0282 0.0279 0.0271 0.0275 Method2: 0.0271 0.0268 0.0263 0.0274 0.0269 Chemistry
Find out how much energy is needed to raise the temperature of 22.8 g of diethyl ether from -10.0 degree celsius to 142.0 degree celsius?
Calculate the change in internal energy of the following system: a balloon is cooled by removing 0.657 kJ of heat. It shrinks on cooling, and the atmosphere does 384J work on the balloon.
A catalyst decreases the activation energy of a particular exothermic reaction by 59 kJ/mol, to 51 kJ/mol. Assuming that the mechanism has only one step, and that the products are 94 kJ lower in energy than the reactants
If the molar mass is 88 g/mol and the percent composition is 54.5% carbon, 9.15% hydrogen and 36.3% oxygen, what is the molecular formula of dioxane?
Calculate the mass of propylene glycol that must be added to 0.360 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 400.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid.
Calculate the pH at the equivalence point for the titration of 0.20 M HCl with 0.20 M NH3 (Kb = 1.8x10-5)
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