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Lab students need to make 2.00 kg of 3.00 % ethanol in water. What mass of ethanol must they use
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- 1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information would you need to look up and how would you determine the percentage of ethanol in this solution?2. A serum is diluted 1:20 then 2 parts of the resulting dilution is added to 40 parts saline. Then 3 parts of the last dilution was added to saline to have a total volume of 6 parts. What is the final dilution?What is the percent by mass NaCl of a solution that contains 85.7 grams of NaCl and 104.1 grams of water? Round your answer to 1 decimal.
- Your 50 mL beaker has a mass of 5.85 g. You add 10.00 mL to the 50 mL beaker and now the total mass is 16.05 g. You originally used 5.29 g of NaCl to make the solution. What is the percent composition of your solution?2. What is the mass of 1 mL of pure water? How could this information be used to check the accuracy of your pipette?4. A very sick diabetic patient needs to get 10g glucose, CHO̟ via an I.V. over the next hour. The concentration 612 of the glucose in the IV bag is 1.25M. What total volume of the glucose solution should the patient receive? Extra challenge: What rate should the IV drip be set at in mL/minute in order to give the patient the right dose in one hour?
- 3. True/False: Carbon dioxide in water is an example of a liquid in gas solution.Vodka is typically 80 proof, or 40% ethanol. The density of ethanol is 0.789 g/ml, and the standard shot is 1.5 fl oz (US) or 44.36 ml. in one shot of vodka, what is the mass of ethanol? Assume the alcohol percentage is (volume of alcohol) per (volume of solution). Select one: a. 14.00 g ethanol b. 13.90 g ethanol c. 14.10 g ethanol Od. 12.05 g ethanolMuriatic acid is the commercial name for hydrochloric acid that can be purchased from hardware stores as a solution that is 37 % (w/w) HCI. What mass of this solution contains 7.5 g of HCI? Part 1 Your answer is correct. To begin this problem, one must find a way to relate the percentage by weight of HCI to grams of the solution. To do this, assume 37 g of HCI per 100 g of solution. eTextbook and Media Attempts: 1 of 15 used Part 2 Your answer is correct. Set up an equation to solve for grams of solution. 8 soln 8soln = SHCI 8HCI 8soln = (8HCI 8 solr 8roln = (8Hci) [(8som ) (8ncı)] Attempts: 1 of 15 used Part 3 Input the appropriate values to solve for the mass of a 37% (w/w) solution of HCI that contains 7,5 gof HCI? g solution Save for Later Attempts: 0 of 15 used Submit Answer
- 1a. Determine the volume of 1.000 g of water (Densitywater = 0.9999 g/mL). 1b. Determine the volume of 1.000 g of ice (Density ce = 0.9168 g/cm³). (1 mL = 1 cm³) %3D %3D 1c. From the volumes above, what can we conclude about 1.000 g of water when it freezes?How much water, in mL, needs to be added to 29.7 mL of 11.2 M HNO3 to make a 6.05 M solution with the same amount of moles of HNO3? Record 3 significant digits in your answer. Don't type units in. Round your answer to 3 significant figures.The molecular weight od ethanol is 46.07 g/mol with a density of 0.79 g/mL. Convert 2 mL of ethanol to mmol.
