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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: 1. CrBr3 2. MnO2 3. P2O4 4. If 43 mg of Cs is added to excess water, what volume of H2 gas is produced at STP? 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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