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What is the pH of a 2.0 M HCI solultion?
a) 14.0
b) 7.0
c) 11.61
d) 12.39
e) 13.30
From there, how would I find the moles of salicylic acid in aspirin sample (mol) and the mass of salicylic acid in aspirin sample (g), which should help me calculate the percent purity of aspirin and the percent yield of aspirin in sample. Thank y..
draw four different lewis electron-dot formulas for the seo2nbspmolecule. hint one should have two single bonds two
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
Much to everyone's surprise, nitrogen monoxide (NO) has been found to act as a neurotransmitter.To prepare to study its effect, a sample was collected in a container of volume 250.0 mL. At 19.5oC its pressure is found to be 24.5 kPa.
a 0.331-g sample of aspirin prepared in the lab was dissolved in 95 ethanol and titrated to a phenophthalein endpoint
What is the density of a Neon nucleus assuming a typical size for a nucleus and assuming a spherical nuclear shape
What is gel electrophoresis and what is the purpose of using an electrical current in this procedure?
what is delta Urxn for the combustion X; the hardware compnent of the calorimeter has a heat capcity of 3.63kj/*c. the specific heat of water is 4.184j/g*c the MW of X is 56.0 g/mol
On size-exclusion chromatogram you have three peaks (2.9, 3.5, and 4.8 min). Column dead volume is 12 mL, and flow rate 4 ml/min. Are your separation conditions fit for size-exclusion requirements? Explain why.
can dissolve an aluminum soft-drink can in an aqueous base. 2 Al (s) + 2 KOH (aq) + 6H20 (l)---> 2KAI(OH)4(aq) + 3H(g) If you place 2.05g of aluminum in a beaker with 185 mL of 1.35 M KOH, will any aluminum remain. What mass of KAI(OH)4 is produce..
what is the maximum amt of (Ba2+) that can be maintained in 1.9 L of a .030 M solution of Na2SO4.
Name the stereoisomers formed by oxidation of (S)-4-methylcyclohexene with osmium tetroxide.
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