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For the reaction:
NO(g) + 1/2 O2(g) → NO2(g)
ΔH°rxn is -114.14 kJ/mol. Calculate ΔH°f of gaseous nitrogen monoxide, given that ΔH°f of NO2(g) is 33.90 kJ/mol
181.9 kJ/mol
-114.1 kJ/mol
148.0 kJ/mol
-35.64 kJ/mol
91.04 kJ/mol
titration of an 360 mg sample of synthesized aspirin with 0.100 m naoh solution required 20.30ml. what is the emm of
a what is the magnitude of the average acceleration of a skier who starting from rest reaches a speed of 11.8 ms when
Determine the uncertainty in position in nm associated with an electron that is moving with a velocity of 417 km/s. The uncertainty in the velocity is 5.00%. The electron rest mass is 9.11 x 10-31 kg. Use delta x * delta v >= h/4 pi m
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
An unknown compound X, is thought to have a carboxyl group with a pka of 2.0 and another ionizable group with a pka between 5 and 8. When 75 ml of 0.1 M NaOH was added to 100 ml of a 0.1 m solution of X at pH 2.0, the pH increased to 6.72.
We did an experiment to isolate acetylsalicyclic acid from aspirin using methanol. We crushed the aspirin tablet before the extraction began. Why were we instructed to crush the aspirin tablet before proceeding
You are given a 76.0% solution of sulfuric acid, H2SO4. What is the molality of this solution. The density of the H2SO4 solution is 1.278 g/mL.
0.90g of hydrogen chloride (HCl) is dissolved in water to make 6.5L of solution. What is the pH of the resulting hydrochloric acid solution
Explain A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. Define what is the molar mass of the protein
How do you know whether to use PCC or chromic acid for oxidizing a secondary alcohol. I know they both reduce secondary alcohols to ketones, but does it matter which one you pick
If one cubic centimeter section of a reactor has a macroscopic fission cross section of 0.989 cm-1, and if the thermal neutron flux is 1x10^15 n/cm2 s, calculate the fission rate per cubic centimeter.
to a sample of alkaline earth metal carbonate mco3 0.250 g was added 30.0 ml hcl 0.250 ml. carbon dioxide gas evolved
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