What is molality of ethanol
An aqueous solution is 22.0% by mass ethanol, CH3CH2OH, and has a density of 0.966 g/mL. What is molality of ethanol
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At room temperature however, aspirin is not soluble in this particular solvent but all the impurities remain soluble. Describe how to use this solvent to purify aspirin crystals away from the impurities.
Vector r makes angle of 30 degree with x- axis, and 70 degree with y-axis,and it is in the positive octant. vector s makes angle of 45 degree with x-axis , and 60 degree with y-axis , and it is also in the positive octant.
An unidentified organic compound X, containing C,H, and O was subjected to combustion analysis. When 228.4 mg of pure X was burned 627.4 mg of CO2 and 171.2 mg of H2O were obtained. Determine the simplest formula of the compound X.
What would you run as controls to be certain the ferric chloride test was working as predicted? What results would you expect for your control tubes?
Use the dipole moments of HCl and HF ( HCl = 1.08, HF = 1.82) together with the percent ionic character of each bond ( HCl = 20% ionic, HF = 45% ionic) to estimate the bond length in each molecule.
744.5 g of a nonelectrolyte are completely dissolved in sufficient water to make 1.50 L of an aqueous solution at 25.0oC. The osmotic pressure of the solution is 59.9 atm. What is the molar mass of the nonelectrolyte, in g/mol?
An electron in the n=5 level of a hydrogen atom emits a photon wavelength 1282.17 nm. To what energy level does the electron move?
Starting from rest the motorboat travels around the circular path, p=50 m at a speed v=(0.8t) m/s where t is in seconds. Determine the magnitudes of the boat's velocity and acceleration when it has traveled 20 m.
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Staying with Nigeria, rewind the year to 1950. Using the +5 year control, fast forward in 5 year increments until you reach 2020.
Based on the chapter by Allen Furr on the sociology of mental illness, How do sociological models help you understand mental illness differently
This week watch the 3 short video clips below about cultural appropriation. These videos will redefine terms like cultural appropriation
Multiple Choice Question Identify a true statement about political systems controlled by men. Multiple choice question.
Why does victor coin the term hyper-violence instead of just using violence? And second, how is hyper-violence display in the Oakland community?
Question: Which of the following are forms of media bias? (Select all that apply)
Which of the following things happened first? Group of answer choices Women gained the right to vote Seneca Falls Convention Margaret