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How will the melting point of your semicarbazone derivative be affected if the derivative is not dry enough? Briefly explain. my unknown is an aldehyde and the melting point is 179.4-182.2 C
what mass of magnesium chloride is needed to react with 145 grams of silver nitrate according to the following reaction: MgCl2+2AgNO3=Mg(NO3)2+2AgCl?
Which one of the following is a buffer solution?
What is the enthalpy of combustion of this fuel in kJ/mol? The specific heat capacity of water is 4.184 J/g-°C.
if 294 grams of is allowed to react with 176 grams of according to the following unbalanced equation, how many grams of are produced? How many grams of FeS2 and O2 are left?
5x10^3 moles of an ideal gas are held in a container of volume 0.0124 dm^3 and surrounded by a thermostat at 298K. The gas is allowed to double in volume against a constant external pressure of 1.0 atm
Three solutions are mixed to form a single solution. One contains 0.2 mol Pb(C2H3O2)2, the second contains 0.1 mol Na2S, and the third contains 0.1 mol CaCl2.
Determine the total number of double bonds and/or rings for a hydrocarbon
What is the rate of the above reaction? What is the closest numerical value of K for the above reaction? What are the units for the rate constant for the reaction?
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
what are the H3O+ and OH- concentrarions in a 125 mL solution prepared with 0.100 mol pf NaOH and water?
Calculate the concentration of the Ca2+ in ppm (or mg/L) using the correct number of significant figures assuming the 1.0 HCl has a density of 1.000 g/mL. Show these calculations clearly in your notebook and on your report form. Recall that calciu..
What is the osmotic pressure of human blood at 37°C if human blood is isotonic to 0.16 M NaCl solution? Remember that NaCl almost completely ionizes in water.
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