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An aqueous mixture containing starch (a collois), NaCl, glucose, and albumin (a collide) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?
How does one perform pH analyzer calibration and why is calibration necessary for a pH analyzer?
the initial volume of a sample of argon gas is 938 ml at 178degc. if the pressure is held constant and the volume is
I have a 3-methyl-1-Pentyne compound starting in an only (s) configuration and I'm putting in H2 and Pt. The product of this reaction would be.... a) Only (S) b) Only (R) c) (R) + (S) d) Achiral
how many mL of chlorine gas are required to produce 0.50L of hydrogen chloride gas(HCl) at constant temperature and pressure?
a gas company in massachusetts charges 1.30 for 15ft cubed of natural gas ch4 measured at 20 degrees celsius and 1.0
Pure water, .120 m C6H12O6, .050 m LiBr and .050m Zn(NO3)2....which has the highest vapor pressure, highest boiling point and highest freezing point
Styrenes empirical formula is CH. What mass of styrene contains 6.48*10^21 atoms of hydrogen.The molar mass of styrene is 104g/mol.
How many H+ ions are required when the equation below is balanced in acidic solution with the smallest whole number coefficients? Cu(s) + NO3-(aq) => Cu2+(aq) + NO(g)
why is it dangerous to heat a liquid in a distilling apparatus that is closed tightly at every joint and has no vent to the atmosphere?
Dry the hydrate as instructed in the lab procedure, noting down it's mass until it appears to no longer decrease (no more water bound in the sample).
If we make a solution of a mixture of 2.30g of NaCN in 100 mL of water and 2.60g of HCN in 100 mL of water, what will be the pH of the buffer? 2) Calculate the pH of a buffer that contains 0.20 M acetic acid (HCrFI3O2) and 0.30 M sodium acetate (N..
A compound is found to contain 49.5% carbon, 5.19% hydrogen, 16.5% oxygen, and 28.9% nitrogen. Its molecular mass is 194.2 g/mol. What is its empirical formula? What is its molecular formula? Explain what each of these formulas tells us about the ..
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