Question 3 (Essentiel(le)) (0,5 points) Enregistré(e) For solution #3, you are tasked with preparing 100.00 mL of solution that is approximately 2.0%m/V in concentration for L-proline. What is the approximate mass (in grams, with the proper number of significant digits) of L-proline required to obtain such a concentration? Pour la solution #3, vous êtes chargé de préparer 100.00 mL de solution qui a une concentration d'environ 2.0%m/V en L- proline. Quelle est la masse approximative (en grammes, avec le nombre approprié de chiffres significatifs) de L-proline nécessaire pour obtenir une telle concentration? Votre réponse: Réponse مه unités

Tirofiban (C22H36N₂O5S MWt = 440.6) is present as tirofiban HCI monohydrate (C22H36N2O5S.HCI.H₂O MWt=495.1) at 0.281 mg/mL in a concentrated solution. A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose solution and adding 50 mL of concentrated solution. Sofia who weighs weighs 87 kg requires a tirofiban dose of 0.1 mcg/kg/min for 12 to 24 hours. What would the infusion rate be (mL/h)? (Answer to 1 decimal place.) Answer:

Tirofiban (C22H36N₂O5S MWt = 440.6) is present as tirofiban HCI monohydrate MWt=495.1) at 0.281 mg/mL in a concentrated solution. (C22H36N2O5S.HCI.H₂O A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose s and adding 50 mL of concentrated solution. Sonya who weighs weighs 60 kg requires a tirofiban dose of 0.4 mcg/kg/min for 30 minute- What volume would remain after 30 minutes? Answer: 94.53 mL X The correct answer is: 236 mL

A 20.00 mL solution of 15.2 ppm CaCl2 (aq) is diluted to a final volume of 50.00 mL. What is the molarity of Cl- (aq) in the diluted solution?

Please help with Question 4 (b)

For the following results of Thermodynamics of Borax Solubility, the volume of Borax solution titrated by HCI is 8.00 mL. Table 1. Volumes of hydrochloric acid required to titrate a saturated borax solution at varying temperatures. The hydrochloric acid was a solution standardized at 0.2912 M. Borax Volume added (mL) Temp. (°C) 8.00 8.00 8.00 8.00 8.00 HCI Volume (mL) 50.5 33.75 40.7 27.02 30.0 17.95 20.2 13.43 10.3 8.55 Using Thermodynamic formula (R= 8.31 J/K•mol) and the above results, (e) AS° = (J/K⚫mol) Type your answer...

49.10 Lactic Acid Salicylic Acid 48 5 g 2g Trichloroacetic Acid Flexible Collodion q.s. ad 100 g Sig: wart remover. Use as directed. (a) Flexible collodion contains 20% w/w camphor and 30% w/w castor oil. How many grams of each would be contained in 30 g of the mixture? (b) The specific gravity of castor oil is 0.955. How many milliliters of the oil are contained in 30 g of the mixture? (c) If the specific gravity of the mix- ture is 0.781, what are the w/v con- centrations of lactic acid, salicylic acid, and trichloroacetic acid in the mixture? 49. (a) 5.34 g camphor and 8.01 g castor oil (b) 8.39 mL castor oil (c) 3.12% w/v lactic acid, 3.91% w/v sali- cylic acid, and 1.56% w/v trichloroacetic acid