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A 65.0 g sample of NaOH is dissolved in water and the solution is diluted to...
A 77.2 g sample of NaOH is dissolved in water and the solution is diluted to give a final volume of 2.59 liters. Calculate the molarity of the solution. Use 40.0 as the molar mass for NaOH. Type your answer...
1 2 points A 52.2 g sample of NaOH is dissolved in water and the solution is diluted to give a final volume of 4.36 liters. Calculate the molarity of the solution. Use 40.0 as the molar mass for NaOH. Type your answer. Previous
44 2 points A 443 g sample of NaOH is dissolved in water and the solution is diluted to give a final volume of 2.01 liters. Calculate the molarity of the solution. Use 400 as the molar mass for NaOH Type your answer. Previous
Part A. caculate the molarity. 6.65 g of NaCl in 250. mL of a NaCl solution Part B. calculate the volume, in liters, for each of the following 34.0 g of NaHCO3 from a 1.00 M NaHCO3 solution (express your answer as three significant figures) Part C. calculate the final concentration of each of the following 1. a 20.0 ml sample of an 7.0% (m/v) KBr solution is diluted with water so that the final volume is 222.0 mL 2....
A 50 g sample of NaOH is dissolved in 1.00 L of water at 20 °C in a calorimeter. The final temperature of the solution is 33.2 °C. Calculate the molar heat of solution. Assume the heat capacity of the calorimeter is 16 J/K.
Q3.1 3 Points A 12.0 M stock solution of HCl(aq) is diluted with water to give 500.0 ml of 0.155 M HCl(aq). What volume of the initial stock solution is used in ml? Enter your answer here mL Q3.2 6 Points A sample of 75.52 g of xylose (C5H1005) is dissolved in 275.0 mL of water. If the density of water is 1.00 g/ml What is the m/m % of xylose in the solution? Enter your answer here What is...
References A 2.00 g sample of KCI is dissolved in 65.0 mL. of water. The resulting solution is then added to 15.0 mL. of a 0.430 M CaCl, (aq) solution. Assuming that the volumes are additive, calculate the concentrations of each ion present in the final solution. Concentration of K ions M Concentration of Ca ions Concentration of CI ions M Submit Answer Try Another Version 6 item attempts remaining
erksheet 7-Rey 10 A 10.0 mL sample of sodium chioride solution that has a mass of 16.78 g is placed in an Solutions evaporating dish and evaporated to dryness. The residue has a mass of 6.55 g. Calculate the following concentrations for the NaCl solution mass/mass (m/m) percent mass/volume (m/v) percent malarity A 4.00 % (g/mL) KI solution has a volume of 65.0 mL. How many grams of KI are in the sample? How many grams of a 35% (...
| A 0.458 g sample of a diprotic acid is dissolved in water and titrated with 0.170 M NaOH. What is the molar mass of the acid if 37.4 mL of the NaOH solution is required to neutralize the sample? Assume the volume of NaOH corresponds to the second equivalence point. molar mass: g/mol
A 65.0 mL aliquot of a 1.60 M solution is diluted to a total volume of 268 mL. A 134 mL portion of that solution is diluted by adding 179 ml of water. What is the final concentration? Assume the volumes are additive. concentration: A 3.94 g sample of a laboratory solution contains 1.26 g of acid. What is the concentration of the solution as a mass percentage? concentration: % acid How many grams of a 19.3% sugar solution contain...