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Question- What is the power output for a subject cycling at a cadence of 70 rpm and a resistance setting of 3 kp?
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If 22.22 mL of a 1.50 M Ni(NO3)2 solution is diluted to exactly 250.0 mL, what will be the concentration of the dilute solution
Define what is the freezing point of a solution (in degrees Celsius) prepared by dissolving 50g of glycerin (C3H8O3) in 200g of ethanol (C2H5OH), which has a freezing point at -114.6 degrees Celsius, (Kf= 2.00 degrees Celsius/mol). Explain which l..
What mass of oxygen (in grams) reacts when 14.2 g of ethanol (CH3CH2OH) are combusted in oxygen to produce carbon dioxide and water
The solubility of KNO3 is 38 g/100 g H2O at 20 degrees Celsius and 1.50 times 100 g/100 g H2O at 70 degrees Celsius. A solution is prepared by mixing 45 g of KNO3 in 35 g H2O at 70 degrees Celsius. Will all of the potassium nitrate dissolve at 70 ..
Fluorine-18 decays by positron emission, and is a key tracer used for medical imaging via positron emission tomography. What is the other most likely decay mechanism for fluorine-18?
Explain when pentane, C.5H.12, burns in oxygen, it produces carbon dioxide as well as water. If 85.5g of pentane is completely burned, what volume of carbon dioxide is produced? Assume the CO.2 cools to room temperature where its density is 1.997g/..
The base peak in the mass spectrum for this compound indicated the compound lost a fragment that has an m/z=17. This fragmentation corresponds to the loss of a(n)
A reaction mixture initially contains 2.8M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 x 10^-6 ?
The stable allotropic form of phosphorus is P4, in which each P atom is bonded to three other P atoms. Draw a Lewis structure of this molecule and describe its geometry.
Pyridine(C5H5N) is a weaker base in H2O than 2,6 lutidine (dimethylpyridine), but we observe that the pyridine-BF3 complex is more stable than the comparable lutidine-BF3. Explain the reason for this inversion in stabilities.
What was the concentration of the phosphoric acid?
Explain ortho effect affecting the acidity & basicity.
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