Calculate the volume, in liters, of 1.616 M KOH that must be
added to a 0.129 L solution containing 10.85 g of glutamic acid
hydrochloride (H3Glu Cl–, MW = 183.59 g/mol) to achieve a pH of
10.17. Glutamic acid (Glu) is an amino acid with pKa values of pKa1
= 2.23, pKa2 = 4.42, pKa3 = 9.95.
=?? L
Calculate the volume, in liters, of 1.616 M KOH that must be
added to a 0.129 L solution containing 10.85 g of glutamic acid
hydrochloride (H3Glu Cl–, MW = 183.59 g/mol) to achieve a pH of
10.17. Glutamic acid (Glu) is an amino acid with pKa values of pKa1
= 2.23, pKa2 = 4.42, pKa3 = 9.95.
= ?? L
8C How many liters of a 3.14 M K2SO4
solution are needed to provide 81.3 g of K2SO4 (molar
mass 174.01 g/mol)? Recall that M is
equivalent to mol/L.
Expresss your answer to three significant figures.
7B Gastric acid pH can range from 1 to 4, and
most of the acid is
HCl.
For a sample of stomach acid that is
1.26×10−2M in HCl, how many moles of HCl are in
12.1 mL of the stomach acid?
Express the amount to...
How many liters of fluorine gas are needed to form 295 L of
sulfur hexafluoride gas if the following reaction takes place at
2.00 atm and 273.15 K: S(s) + 3F₂(g) → SF₆ (g)?
In a titration 34.20 mL HI, 21.78 mL of 0.250 M LiOH was needed
to reach the equivalence point.
a.) What is the reaction equation for this reaction?
b.) How many moles of LiOH were added during the titration?
c.) How many moles of HI were present in the original
sample?
d.) What was the HI concentration in the original sample?
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