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A student placed 16.5g of glucose (\rm C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-\rm mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 30.0-\rm mL sample of this glucose solution was diluted to 0.500 \rm L. How many grams of glucose are in 100. \rm mL of the final solution?
Calculate the maximum yield of substance X that could be obtained if 10g of X were recrystallized from 50 mL of the solvent at the above conditions.
Why is this isolation so difficult? Please explain using the isoelectric point and the effect PH will have on the structure of your product
Draw the structure(s) of all of the possible monochloro derivatives of 2,2-dimethylpropane, C5H11Cl. Please Explain.
If the 4.00g sample corresponds to 0.0666 moles of a compound, what is the molecular formula of the unknown molecule (CxHyOz)
what is the percentage yield if 400 grams of chlorine react with excess potassium bromide to produce 820 grams of bromine
A certain quantity of gas occupies 61.3 mL at 68C. If the pressure remains constant, what would be the volume of the gas at 128C?
What Amount of enrgy has been transferred to heat the water? (The specific heat capacity of water is 4.184 J/g *C )
If the final temperature of the system is 31.1°C, what is the specific heat capacity of the alloy? (c of water is 4.184 J/g×K)
A certain compound is made up of two fluorine atoms, one chlorine atom, and one phosphorus atom. What is the chemical formula of this compound
What is the mole fraction of Kr if the partial pressure of Xe and Ar are 1.60 atm and 2.8 atm, respectively?
A compound A has prominent infrared absorptions at 1050, 1786, and 1852 cm-1 and shows a single absorption in the proton NMR spectrum
What would be the speed of the following particles if they had the same wavelength as a photon of red light ( = 750.0 nm)
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