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A patient's blood test shows that she has elevated levels of LDL (low density lipoproteins) at 4.12 mmol/L. Convert this concentration to units of molarity (mol/L).
must be dissolved in 15.0g of camphor to lower its freezing point by 2 degrees celsius? constant k of camphor = 37.7 (*C x kg)/mol
What is the C2O42- concentration in a solution that is 0.10 M in oxalic acid and 1.0 M in HCl? (Consider that the oxalic acid concentration at equilibrium for this common ion problem is 0.10 M.)
What volumes of sulfur dioxide and dihydrogen sulfide gases are necessary to produce 11.4 L of water vapor? The balanced equation is SO2 + 2 H2S à 3 S + 2 H2O.
what percentage of the water will be vapor when the system reaches equilibrium? assume ideal behavior of water vapor and that the volume of liquid water is negligible. the vapor pressure of water 35 degree celcius is 187.5 mmHg.
what is the electronic geometry about a central atom which has the following number regions of electron density? a) Four regions of electron density b) Six region of electron density
Initially a container contains 0.46 M HI and no product. What is the equilibrium concentration of H2
smaller dipole moment than formaldehyde, H2C=O, even though it contains electronegative chorine atoms in place of hydrogen. Explain
how many equivalents of KBr moles of 0.00416 relative to acetanilide moles of 0.00381 are used in this reaction
The solubility of Ag2CO3 in water is 2.58e-4 moles in 2 liters at 25 degrees celcius. What is the value of Ksp for Ag2CO3
For a silver-silver chloride electrode, the following potentials are observed- E° = 0.222 V E(saturated KCl) = 0.197 V Predict the value of E for a calomel electrode saturated with KCl, given that E° for the calomel electrode is 0.268 V
What is the maximum strength of acetic acid waste ( as TOC in mg/L) that can be discharged without violating either permit requirement. ( recall that TOC in mg/L , measures the number of miligrams of carbon per liter)
Assume the caffeine solution is 15 mg of caffeine per mL. A student used 5 mL of caffeine solution in both part A and part B. Crude yields was 68 mg from the dichloromethane extract and 47mg from the MTBE extract.
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