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Cyclopropane has significantly less angle strain than cyclopropane, yet is only slightly lower in energy. How can this be true? How does this information relate to the fact that cyclobutane is not a planar molecule, but has one carbon bent about 25 degrees out of the planar of the other three
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SI2. Determine the number of bonding electrons and the number of nonbonding electrons in the structure of CO2.
Predict the likely mode of decay for the following isotopes used as imaging agents in nuclear medicine (choose all likely modes od decay- can have multiple answers for each and may be used multiple times):
write a balance chemical equation for the combustion of 1 mol glycerin, and calculate delta H for this reaction at 298K if burning 1 mol glycerin has a delta E of -54.6 kj
A 15.8 g sample of a nonelectrolyte was dissolved is 104.0 g of water. The solution's freezing point was -1.9°C. What is the molar mass of the unknown compound?
The osmotic pressure,pie , of a solution of glucose is 83.1atm . Find the molarity of the solution at 298k .
A sample containing 0.187 g Cl- is dissolved in 50.0 mL water. How many moles of Cl- ion are in the solution? What is the molarity of Cl- ion in the solution?
Draw an energy diagram for the enthalpy of solution of NaCl given that the lattice energy is 773 kJ/mol, the enthalpy of hydration
Determine the percent yield if a student decomposes H 2 O to Form hydrogen (H) and oxygen(O). If the student starts with 34.7 grams of H2O and collects 20.0 grams of oxygen,
Express the pressure values numerically in atmospheres, separated by commas. Enter the partial pressure of methane first, then ethane, then propane.
the standard molar enthalpy of vaporization for water is 40.79kj/mol. what mass of steam is required to release 500. kj of energy upon condensation.
calculate the molality of each of the following solutions: a)14.3g of sucrose in 676g ofwater b)7.20 moles of ethylene glycol in 3546g of water.
What would be the best indicator for the titration of 0.20 M CH3COOH titrated with 0.2 M NaOH? (Ka for acetic acid = 1.8 X 10-5) The pH ranges for the color change of some common acid base indicators are given below
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