A nursing floor requires half liter of 50% isopropyl alcohol. How many millimeters of 70% isopropyl alcohol will be needed for compounding this order?
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A nursing floor requires half liter of 50% isopropyl alcohol. How many millimeters of 70% isopropyl alcohol will be needed for compounding this order?
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- A chemist mixes 34.9 g of diethyl ether with 52.1 g of 2-ethyltoluene and 9.03 g of butanoic acid. Calculate the percent by mass of each component of this solution. Be sure each of your answer entries has the correct number of significant digits. component mass percent diethyl ether 2-ethyltoluene 0% 0% butanoic acidThe content of ethanol or alcohol for alcoholic beverages is measured with alcohol proof. A 750 mL bottle of vodka is labeled as 60 proof. What is its alcohol content?To make 5.00 L of a fruit punch that contains 10.0% v/v ethanol, how much 95.0% v/v ethanol must bemixed with how much fruit juice?a. 1.90 Lb. 48.0 mLc. 526 mLd. 190 mL
- What is the BEST numerical value for the quantity of liquid in the graduated cylinder? 30 20 Click Save and Submit to saue and submit. Click Save All Answers to save all ansiwers.You are diluting down a solution by mixing it with water. You start with a ‘stock concentration’ of 20g/mL. We want to make up a ‘working solution’ 500 mL at 3 g/mL. How much stock and how much water?A homogeneous mixture consists of 5% methanol, 70% isopropanol, and 25% water. Label these components as solvents or solutes. methanol: [ Select ] isopropanol: [ Select ] water: [ Select ]
- A laboratory technician purchased 250. mL of 15.4 mol/L nitric acid. She uses this concentrated solution to prepare a 1.00 mol/L nitric acid solution. How many litres of dilute nitric acid can she prepare from the concentrated nitric acid solution she purchased?A chemist mixes 28.4 g of acetone with 60.1 g of 4-methyl-2-pentanone and 4.31 g of methanol. Calculate the percent by mass of each component of this solution. Be sure each of your answer entries has the correct number of significant digits. component acetone 4-methyl-2-pentanone methanol mass percent Ï% 0 п% % ☐ x10 X3 ways to separate water to a liquid mixture and its step by step procedure
- A substance has a solubility of 12.5 g per 100 mL of solvent at 100 degrees celsius and 2.45 g per 100 mL of solvent at 10 degrees celsius. How many grams of the substance can dissolve in 25 mL of solvent at 10 degrees celcius. _______ grams can dissolve in 25 mL at 100 degrees ____ grams can dissolve in 25 mL at 100 degrees celsius.A chemist mixes 31.7 g of carbon tetrachloride with 59.7 g of 2-ethyltoluene and 10.5 g of isopropenylbenzene. Calculate the percent by mass of each component of this solution. Be sure each of your answer entries has the correct number of significant digits. component mass percent carbon tetrachloride 2-ethyltoluene isopropenylbenzeneYou are working in the hospital specials unit as a rotational pharmacist. You need to make a sodium chloride 8% solution. You have both 20% and 4% solutions available. You need to combine both these solutions correctly to prepare this new 8% solution. How much will you need of the 4% solution to prepare 400ml of sodium chloride 8% solution. Give your answer as a whole number. Units -ml