Three beakers are in a lab, each holding a different liquid.
Beaker 1 contains 6.022 * 1023 molecules of hexane
Beaker 2 contains 6.022 * 102³ molecules of chloromethane
Beaker 3 contains 6.022 * 102³ molecules of water.
Which sample has the highest mass? Support your answer with calculations.
A 54.3 mL urine sample is titrated to neutrality with 2.54 mL of 4.63*10-8 M
KOH by the following neutralization reaction.
H3O+ (aq) + KOH (aq)
What is the pH of the original urine sample?
Write the name of the following compounds:
If 43 mg of Cs is added to excess water, what volume of H2 gas is produced at
2 Cs (s)+2H2O(I)
2 CsOH (aq) + H2 (g)
A patient is prescribed 7.34 mg/kg of ibuprofen everyday for pneumonia.
Ibuprofen comes in 0.245 g tablets. If the patient weighs 142.6 lb, how many
whole tablets should the patient take each day?
A patient will test positive for covid antibodies if the concentration of
antibodies in their blood has a concentration of 0.02 ng/mL. If a 50.0 cm³
sample of blood tests positive for the antibodies, what is the mass of the
antibodies in the in the blood in mcg (g)?
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