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Calculate the ph at the equivalence point for the following titration 0.20M HCl versus 0.20M methylamine (CH3NH2). The Ka of methylammonium is 2.3x10^-11.
The electrons in the neutral carbon atom are redistributed so that there are three lone electrons in the three 2p orbitals and one lone electron in the 2s orbital.
Treatment of this disaccharide with alpha mannosidase yields D-mannose and D-glucose. Draw the structure of the trisaccharide and state its systematic name.
Draw the structure(s) of the product(s) of the Claisen condensation reaction between ethyl phenylacetate and ethyl formate.
Calculate the standard-state entropy for the following reaction: 1 \rm CH_4(g) + 2 \rm O_2(g) \longrightarrow 1 \rm CO_2(g) + 2 \rm H_2O(l) (If applicable, coefficients of one have been included for clarity.)
Isomeric products isolated from free-radical chlorination, Some isomeric products were isolated from the free-radical chlorination of (R)-sec-butyl chloride.
NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid (H2C4H4O6, fw 150.09) per 100 mL of wine.
Which of the following substances can act as a Bronsted acid in aqueous solution? (Select all that apply.)
Consider a house into which radon is emitted through cracks in the basement. The total volume of the house is 650 m^3 (assume the volume is well mixed throughout). The radon source emits 250 pCi/s
How many moles of H+ (H3O+) are produced in 40.0 m of 0.025 M HCL?
Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid? Drag the appropriate compounds to their respective bins. CO, NO, LiCl, HBr, BaS, RbCl, SrO, LiBr
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively
In biological and medical applications, it is often necessary to study the autoionization of water at 37 degrees centigrade instead of 25 degrees centigrade. given that Kw for water is 2.5 X 10^-14 at 37 degrees centigrade, calculate the pH of pur..
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