Warm up questions
9 important questions on Warm up questions
How many mL of 2.3 M sulfuric acid (H2SO4) is neutralized by the addition of 15.8 mL of 3.2 M sodium hydroxide (NaOH)?
How many mL of a solution containing 0.046 M oxalic acid (H2C2O4·2H2O) is neutralized by 10.0 mL of 0.051 M NaOH?
Complete the following reaction by filling in integers for a–e: a MnO4 – + b H2O (l) + c e – ⇌ d MnO2 (s) + e OH–
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REAL PHARMACY EXAMPLE: Potassium citrate mixture contains 30% w/v potassium citrate (306.4 g/mol) and 5.0% w/v citric acid monohydrate (210.1 g/mol). What is the molarity of citrate, and that of citric acid?
REAL PHARMACY EXAMPLE: When making a tincture, you need to add 65.0 g of 96% ethanol per 100 mL of tincture. How many mL of 96% ethanol (ρ = 789 kg/m3 ) do you need to use for 250 mL of tincture?
REAL PHARMACY EXAMPLE: Amoxicillin is an antibiotic, and children should get 50 mg/kg of body weight per day, divided into three doses. An amoxicillin suspension contains 25 mg/mL. How many mL should a 24-kg child take per dose? Round your answer to full mL.
REAL PHARMACY EXAMPLE: Potassium chloride is available as concentrate for injection in 1-mL ampules, with a concentration of 74.6 mg/mL. How many mL do you need to dilute to make 1.0 L of KCl infusion of 20 mmol/L? Round your answer to full mL.
Find x. Give your answer to 2 decimals. 0.400 = 0.390 − 0.05916 2 log (
Find x and y. Give your answers to 4 decimals. {
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