1.Blood serum is typically about 0.0044 M in K+ (aq). Calculate the mass of the potassium ions in 4,671. mL of blood ser
Posted: Tue May 17, 2022 6:19 am
1.Blood serum is typically about 0.0044 M in
K+ (aq). Calculate the mass of the
potassium ions in 4,671. mL of blood serum,
in grams. The molar mass of potassium is
39.10 g/mol.
2.Seawater contains many ions besides sodium ( Na+)
and chloride (Cl-). One of other ions prevalent in
seawater is magnesium (Mg2+), making seawater a raw
material for Mg metal and many Mg-containing compounds.
A 463-mL sample of seawater was found to contain
0.502 g of Mg2+. What is the
concentration of Mg2+ in this sample,
in mol/L? Enter your answer to three
significant figures.
3.A 102 g sample of river
water contains 0.34 mg of lead.
How many parts per million (PPM) of lead
are in the sample? Enter only the numerical part of the answer (no
unit) to one decimal place
K+ (aq). Calculate the mass of the
potassium ions in 4,671. mL of blood serum,
in grams. The molar mass of potassium is
39.10 g/mol.
2.Seawater contains many ions besides sodium ( Na+)
and chloride (Cl-). One of other ions prevalent in
seawater is magnesium (Mg2+), making seawater a raw
material for Mg metal and many Mg-containing compounds.
A 463-mL sample of seawater was found to contain
0.502 g of Mg2+. What is the
concentration of Mg2+ in this sample,
in mol/L? Enter your answer to three
significant figures.
3.A 102 g sample of river
water contains 0.34 mg of lead.
How many parts per million (PPM) of lead
are in the sample? Enter only the numerical part of the answer (no
unit) to one decimal place