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- Xylometazoline hydrochloride paediatric nasal drops are formulated as a 0.05% w/v solution. What amount of xylometazoline hydrochloride is present in 10 mL of solution?A) 1 mgB) 5 mgC) 10 mgD) 50 mgE) 100 mg57. A hospital medication order calls for the administration of 100 g of mannitol to a patient as an osmotic diuretic over a 24-hour period. Calculate (a) how many milliliters of a 15% w/v mannitol injection should be administered per hour and (b) how many milliosmoles of mannitol (m.w. 182) would be represented in the prescribed dosage. beeA 250-mL bottle of mouthwash contains 21 mL of ethanol. What is the volume/volume percent concentration of ethanol?
- A topical solution contains 3% w/v hydroquinone . how many liters of the solution can be prepared from 30g of hydroquinone?If a patient is getting 2.5L NaCL 0.9% over 18 hours, what is the rate per hour in mL?A lotion vehicle contains 15% (v/v) of glycerin. How much glycerin should be used in preparing 5 gallons of the lotion?
- A pharmacist adds 1 pint of Alcohol USP (95% ethanol) to a 1L of a mouthwash formula. What is the new percentage of alcohol present if the original mouthwash was labelled as 12% v/v ethanol? a 30% b 38% c 45% d 35% e 40%Chloraseptic sore throat spray contains 0.35 g of the antiseptic phenol dissolved in 25 mL of solution. What is the weight/volume percent concentration of phenol?How many milliliters of 0.218 M NaOH is needed to completely hydrolyze (saponify) 2.30 g of propyl acetate?
- To make 500 ml 0.075M KCL hypotonic solution from 0.75 M KCl stock solution, how many ml 0.75M KCl solution is needed and how many ml H2O is needed?How many milliliters of a non-medicated, flavored syrup base must BE ADDED to 1 pint of ranitidine (Zantac) syrup, 15 mg/mL, to change its concentration to 5 mg/mL?Questions 11 through 14 pertain to the following case and formula: The following is a formula for compounding losartan suspension intended for pediatric use. Losartan 50 mg tablets Purified Water Ora-Plus Liquid Ora-Sweet S/F Liquid # 10 10 mL 100 mL QS → 200 mL 11. What is the concentration of losartan in this suspension, in mg/mL? 12. An infant is prescribed the above medication with the directions: "15 mg PO Q 24 h for 30 days." What volume of losartan suspension should be dispensed? 13. What volume of the suspension can be produced if you only have 40 mL of Ora-Plus in stock? 14. Ora-Plus liquid contains carboxymethylcellulose sodium at a 1% (w/v) concentration. After mixing the ingredients, what will the final concentration of carboxymethylcellulose be, expressed as a percent concentration (w/v)?
