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individual suffering from a high cholesterol level in her blood has 239 of cholesterol per 100 of blood. If the total blood volume of the individual is 5.4 , how many grams of total blood cholesterol does the individual's body contain?
The molality of sodium nitrate solution us 1.44m. What is mole fraction of NaNo3. The molar mass of NaNo3 is 85.06g/mol
What is the entropy change if two mole of liquid water is heated from 20 C to 100 C under constant pressure? Cp=75.5 J/mol*K over this temperature interval
the alcohol attacking the 2-phenylacetic acid with the subsequent loss of a proton. b. protonation of the ethanol by H2SO4. c. protonation of the carbonyl oxygen of the 2-phenylacetic acid. d. protonation of the hydroxyl group of the 2-phenylac..
How many grams of water are required to dissolve 24g od KNO3 at 100 degrees celsius?
A student ran the following reaction in the laboratory at 689 K H2(g) + I2(g) 2 HI(g)
Determination of the composition of a mixture You will be given a multi-component mixture and will be required to determine (and confirm) the %composition of the mixture, obtain a sample of each component and to verify its purity and identity.
A solvent for an industrial process requires the use of phenol or benzene. Both are about the same in effectiveness for the process, and of course, gloves will be used when handling either solvent
At room temperature (20^circ rm C), milk turns sour in about 63 hours. In a refrigerator at 3^circ rm C, milk can be stored three times as long before it sours. Estimate the activation energy of the reaction that causes the milk to sour.
If you dilute 28.0 of the stock solution to a final volume of 0.540 , what will be the concentration of the diluted solution?
Determine the mass of H 2 O in the flask and it's the true volume at 20° C?(at 20°C the Density g/mL=0.9982071,20°C the volume of 1g of water (mL) corrected for buoyancy is 1.0029 )
suppose .853L of H2 is collected at 15 degrees celcius and 782 mmHg. how much electricity in coulombs must have passed through the solution
A solution is prepared from 0.95 grams of H3PO4 ,(Phosphoric acid) and 1.15 grams of HClO4 (perchloric acid) in 150 mili litres of solution then determine how many milliliters of 0.425 M sodium hydroxide( NaOH) is needed.
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