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Is the compound NH2- polar or non polar? Why or why not?
What is the pH of a 0.15 M solution of the weak base ammonia (NH3). The Ka of the conjugate acid is (NH4) is 5.6e-10.
Problem- Part 1) What spectroscopic technique would you use to distinguish between cyclopentane and cyclohexane. Briefly and succinctly explain how this technique would enable you to do this.
In fact as the temporary sure not far above the boiling point of the liquid, the gas is not ideal. Explain how this would affect the results of the molecular weight determination.
While 25mL of 0.10 mol/L HBr(aq) is titrated with 0.10 mol/L NaOH(aq), explain what is the pH at the equivalence point. Choose an appropriate indicator.
how much heat does your body lose when 2.95g of sweat evaporates from your skin at 25 degrees Cecilius
How many moles of isopentyl acetate are there in 1 g of isopentyl acetate...1 mL of isopentyl acetate
A saturated solution of calcium hydroxide contains .38 grams of calcium hydroxide in each 250 mL of solution. What is the pH of the saturated calcium hydroxide?
A child has a lung capacity of 2.20 L. How many moles of air do her lungs hold at a pressure of 102 kPa and a normal body temperature of 37 degrees celcius?
The silicon in the plate is a mixture of naturally occurring isotopes. One of the those isotopes is silicon-30, which has an atomic mass of 29.97376 amu and a percent natural abundance of 3.10%.
A solution containing 3.23 grams of an unknown compound dissolved in 100.0 grams of water freezes at -0.97degrees Celsius. The solution doesn't conduct electricity. Compute the molar weight of the compound. The molal freezing point depression cons..
If 1.0 μg/ml of pigment X shows an absorbance of 0.059 at 370 nm, then what is the concentration of a solution of pigment X that shows an absorbance of 0.443 at 370 nm? (Assume linearity.)
Question- For the reaction N2O4(g)↔2NO2(g), Kc=0.21 at 100 Celsius. At an early point during the reaction [N2O4(g)]= 0.12M and [NO2]= 0.55M. Is the reaction at equilibrium? If not, in which direction will it proceed
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