A solution of 0.178 0.178 M cysteine is titrated with 0.0712 0.0712 M HNO3 HNO3 . The p K a pKa values for cysteine are 1.70 1.70 , 8.36 8.36 , and 10.74 10.74 , corresponding to the carboxylic acid group, thiol group, and amino group, respectively. Calculate the pH at the equivalence point of the titration.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

How many atoms are in 2 moles of phosphorus?

Question 17 hydrogen is manufactured on an industrial scale by this sequence of reactions: +ch4gh2og ⇌ +cog3h2g k1 +cogh2og ⇌ +co2gh2g k2 the net reaction is: +ch4g2h2og ⇌ +co2g4h2g k write an equation that gives the overall equilibrium constant k in terms of the equilibrium constants k1 and k2. if you need to include any physical constants, be sure you use their standard symbols, which you'll find in the aleks calculator.