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What is the difference in density of air when the atmospheric pressure is 1 atm between freezing 0C and what we experienced here in Rancho Mirage CA last summer: 52 C?
Specific compounds are named in the boxes below and the functional group part of the name is in boldface. For each boldface functional group, draw an expanded structural formula.
The Hope Diamond weighs 45.52 carats. How many moles of Carbon are in the Hope Diamond if 1 carat weighs 200 mg? How many carbon atoms are in the Hope Diamond?
When the reaction 2 H2S g ~ PCl3 + Cl2 is carried out at 1065 degrees celcius, Kp = 0.012. Starting with pure H2S at 1065degrees, what must the initial pressure of H2S be if the equilbrated mixture at this temperature is to contain 0.250 atm of H2..
the concentration of mg2 in seawater is 0.052 m. what hydroxide concentration is needed to remove 90 of the mg2 by
Ethyl chloride , a substance used as a topical anesthetic, is prepared by reaction of ethylene with hydrogen chloride: C2H4(g)+HCl(g)?C2H5Cl(g) Delta H degrees = -72.3 kj. What is the value of delta E (in kilojoules) for the reaction.
A 10.1 mL sample of vinegar, which is an aqueous solution of acetic acid, HC2H3O2, requires 16.2 mL of 0.474 M NaOH to reach the end point in a titration. What is the molarity of the acetic acid solution. HC2H3O2(aq) + NaOH(aq) NaC2H3O2(aq) + H2O(l..
Based on electronegativity trends in the periodic table, predict which of the following compounds will have the greatest % ionic character in its bonds. a. H2O b. LiI c. CaO d. RbF e. HCl
What is the binding energy, in amu, of 13C? Masses are: proton = 1.00728 amu, neutron = 1.00867 amu, electron = 0.00055 amu, and 13C = 13.00335 amu.
what is the balanced net ionic equation for the reaction below in basic solution? enter the coefficient for each
Explain the operation of a cathode-ray tube. Describe the deflection of cathode rays by electrically charged plates placed within the cathode-ray tube. What does this imply about cathode rays?
What is the solubility of calcium fluoride in a solution that contains 0.015 M calcium chloride? Note calcium chloride is completely soluble in water.
From a purely statistical standpoint -considering only the number of hydrogens on a particular carbon that could be lost from the intermediate carbocation
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