Prepare the following solutions 1. 250.0 mL 0.0100 M working EDTA solution from 0.1000 M EDTA 2. 50.0 mL 0.0050 M working standard Ca2+ solution from 0.0500 M Ca2+ 3. 25.0 mL 4.0 M MnSO4 from MnSO4·2H2O crystals
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Prepare the following solutions
1. 250.0 mL 0.0100 M working EDTA solution from 0.1000 M EDTA
2. 50.0 mL 0.0050 M working standard Ca2+ solution from 0.0500 M Ca2+
3. 25.0 mL 4.0 M MnSO4 from MnSO4·2H2O crystals
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- Describe the preparation of the following solutions include all mathematic calculations and equipment of the laboratory needed A.500 mm of a solution of KNO 1.50 M B. 150 g of a solution 5.0% of NaC2H3O2 C. 500 mm of a solution of NaOH 0.50 M from a solution of NaOH 6.0 MWhat volume of 0.10NH2 SO3 will be required to neutralize a solution containing 10.0grams of Ca(OH)2?a) 0.27Lb) 27Lc) 2.7Ld) 270L What volume of 1.5N NaOH is needed to react with 25ml 4.0N HCl?a) 66.67mlb) 6.67mlc) 50mld) 70ml3. Astelin nasal spray contains 0.1% azelastine hydrochloride and 400 µg/mL of benzalkonium chloride as a preservative. A container is capable of delivering 200 metered sprays of 0.137 mL each. The percent concentration of benzalkonium chloride in the preparation is ________ %, and this is equivalent to a ratio strength of 1:2500 w/v. True or False?
- Benzalkonium chloride 17% w/v . . . . . qs Water qs . . . . . . . . . . . . . . . . . . . . . . 120 mL M. ft . solution such that 2 tbsp added to a pint of water will yield a 1:750 solution. How many milliliters of the 17% w/v stock solution will be needed to prepare the 120 mL? a 2.68 mL b 7.90 mL c 15.80 mL d 20.40 mL e 6.28 mL1. What mass of potassium nitrate KNO3 should be added to 255 g of water to prepare a 15% (m/m) solution of KNO3? [Molar mass KNO3= 101.1 g/mole] 2. Determine the mass of sodium chloride (NaCl) required to prepare a 300 ml Mueller-Hinton broth solution supplemented with 5.5% (wt/vol) sodium chloride solution. [Mwt NaCl = 58.44 g/mol] 3. You have dissolved 45 g of magnesium sulphate in 300 ml distilled water (dH2O). What is the concentration of this MgSO4 solution expressed as % (m/v)? [Mwt MgSO4 = 120.37 g/mol]Titration of a 12.0 mL solution of HCl requires 22.4 mL of 0.12 M NaOH. What is the molarity of the HCl solution?
- Rp Dextrose hydrous 50.0 g Sodium Chloride 9.0 g Calcium Chloride 0.3 g WFI (Water for injection) qs… 1 L Calcium Chloride MW: 111; Sodium Chloride MW: 58.5; Dextrose MW: 198 a. Please calculate how many mOsmol/L is the above LVP solution? b. How many mOsm/L Ca++ and Na+ contain the above solution? c. What is the above LVP solution tonicity?You are presented with the following prescription: Rx Drug Y 175 mg Witepsol H15 q.s. Supply 6 suppositories (using 3 g nominal moulds) When using Witepsol H15, moulds will hold 1.06 times their nominal weight. The displacement value of Drug Y in Witepsol H15 is 1.1. Calculate the mass of Witepsol H15 required to prepare this product. Give your answer to two decimal places.1. Similarities between Colloidal and Crystalline Precipitate 2. Calculate the 96 Ag(m/m) given the following: a. Ore sample containing Ag= 2.0770 g b. After precipitating using BaCl2, the mass of AgCl obtained = 0.7150 g
- The doctor ordered Oxacillin 650mg every 6 hours. The instructions on the 2gm vial states to reconstitute with powder with 11.5ml of sterile water for injection, yielding 220mg/1.5ml. How many ml will you administer? using dimensional analysis and show workThe master formula for preparation of a ganciclovir solution is: Ganciclovir 500 mg injection vial 1 vial Stenle water for iniection 10 mL Sodium chloride 0.9% w/ to 25 mL How may ganciclovir 500 mg injection vials would be required to prepare 1000 mL of this solution??To make up a solution of phosphate buffered saline (PBS), you need 10 mM Na2HPO4 (anhydrous) (FW: 141.96 g/mol), 3 M NaCl (FW: 58.44 g/mol), and 5mM KH2PO4 (FW: 136.09 g/mol). How many grams of each will you need to make up 850 mL of PBS?