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For the average person, a LDL chlesterol value is less than 200mg/dL. (200mg of LDL cholesterol per dL of blood) What is this value in g/mL
Calculate the osmotic pressure of a solution containing 20.00mg of hemoglobin in 16.3mL of solution at 25 ? C The molar mass of hemoglobin
What is the number of moles of an ideal gas, if the volume is 67 mL, the pressure is 716 mmHg and the temperature is 34 0C?
A student titrated a 15.00mL sample of a solution containing a monoprotic weak acid with NaOH. If the titration required 13.36mL of 0.1015M NaOH to reach the equivalence point, calculate
The volatile liquids A and B are confined to a piston and cylinder assembly. The pure vapor pressure of A is 165 torr, and for B is 85.1 torr. Initially only the liquid phase is present
a chemist vaporrizd liquid compund and dermined its density. if the density of the vapor at 90c and 753 mmhg is 1.585
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH.
The density of tungsten is 19.35 g/cm3. A sample of tungsten is placed in a graduated cylinder containing 30.0 mL of water and the water level rises to 34.0 mL. What is the mass in grams of the sample of tungsten?
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon plays
Cyclohexane, C6H12, undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane, CH3C5H9, according to the equation
What can we say about the temperature change of a sample of water when the value of q is negative
cacl2 nahco3 phenol red --gt produces a yellow solutionphenol red is an h-indicator. the skeleton reaction ish
In the winter time, it is common to sprinkle NaCl on icy roads and driveways. Why is this done? Would calcium chloride be more or less effective
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