1 The density of a liquid is 0.661 g/ml. 21.2 g of the liquid are required...
How many milliliters of pure liquid methanol (CH3OH, MW = 32.04 g/mol) are needed to prepare 250.0 mL of an aqueous solution of 19.0 g/L methanol? The density of pure liquid methanol is 0.791 g/mL. Then, express the methanol concentration as a volume percent (% v/v).
The liquid 2-chloroethanol has a density of 1.20 g/mL at 20 °C. If a sample of this liquid at 20 °C has a volume of 2.43 L, how many grams of liquid are there in the sample?
18. An unknown liquid has a density of 1.32 g/mL. What is the volume of a 14.7-8 sample of the liquid? a. 11 ml b. 11.1 mL c. 11.13 mL d. 11.14 mL e. 11.136 ml
What is the concentration of a solution made by adding 247 mL of pure liquid soap (100.0% soap) to total volume of 2.67 L? Chemistry 2A Lab 13: Solution Calculations 12. What is the concentration of a solution made by adding 247 mL of pure liquid soap (100.0% soap) to total volume of 2.67 L? 13. Calculate the volume required of a 42.0% iodine solution to prepare 300.0 mL of a 23% iodine. 14. A patient is to receive 0.200...
What volume of a pure liquid (density 0.710 g/mL) has a mass of 0.290 kg? A) 4.08 ´ 102 mL B) 2.45 ´ 10–3 mL C) 2.06 ´ 10–1 mL D) 2.45 mL E) 4.08 ´ 10–1 mL
15. How many milliliters of glycerine (density =1.26 g/mL) will have a mass of 0.75 lb? a. 175 ml b. 62 mL c. 270 mL d. 400 mL e. none of the above Ne 16. What is the density of a cubic metal if it has a mass of 31.0 g and it measures 2.50 each side? a. 2.55 b. 12.4 c. 5.75 d. 1.98 e. none of the above 17. A metal with a mass of 5.75 g was...
If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 according to the following chemical equation? C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (l) is required to raise the temperature of 10.0 ml. of bromine from 25.00 degree C to 27.30 degree C? The density of liquid bromine: 3.12 g/ml. a. 16.2 b. 10.4 c. 324 d. 5.20 e 300
1. how many milliliters of water at 15 degrees C with a density of 1.00 g/ml must be mixed with 75 mL of instant coffee at 100 degrees C so that the reuslting combination will have a temperature of 60 degrees C? Assume that coffee and water have the same density and the same specific heat. 2. a cylinder has a mass of 3262.6 mg. a graduated cylinder filled with water had an initial volume of 1.42 L. when the...
How many milliliters of concentrated sulfuric acid, 94.0% by weight, density 1.831 g/cm3 , are required to prepare 250 mL of a 0.05 M solution?