3 attempts lett Check my work Enter your answer in the provided box A 3.90 solubility...
Enter your answer in the provided box. A 5.70 g sample of a salt dissolves in 9.60 g of water to give a saturated solution at 26°C. What is the solubility (in g salt/100 g of H20) of the salt? g salt/100 g
Saved ork 2 attempts left Check my work Enter your answer in the provided box. In ice-cream making, the temperature of the ingredients is kept below 0.0°C in an ice-salt bath. Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 4.3 kg of ice to -5.0°C?(Ky of water is 1.86°C/m.) The answer should be rounded to 2 significant figures.
3 attempts left Check my work Enter your answer in the provided box. What will be the final temperature of a 543-g sample of water, initially at 15.0°C, after 59.5 kJ have been added to it?
2 attempts left Check my work Enter your answer in the provided box. A solution of 1.15 g of solute dissolved in 25.0 mL of H20 at 25°C has a boiling point of 100.750°C. What is the molar mass of the solute if it is a nonvolatile nonelectrolyte and the solution behaves ideally (d of H20 at 25°C = 0.997 g/mL)? g/mol
WILL GIVE THUMBS UP 3 attempts left Check my work Enter your answer in the provided box. points A sample of 0.5760 g of an unknown compound containing barium ions (Ba) is dissolved in water and treated with an excess of Na,C0y. If the mass of the BaCO, precipitate formed is 0.5343 . what is the percent by mass of Ba in the original unknown compound? ebook Print References 3 attempts left Check my work Enter your answer in the...
10 attempts left Check my work Enter your answer in the provided box. What will be the final temperature of a 625 g sample of water, initially at 16.0°C, after 61.5 kJ have been added to it?
3 attempts left Check my work Enter your answer in the provided box. A 0.2123-g sample of a monoprotic acid neutralizes 25.6 mL of a 0.06903 M KOH solution. Calculate the molar mass of the acid. g/mol
3 attempts left Check my work Enter your answer in the provided box. If 730 g of ethylene glycol (C2H602) is added to 1,000. g of water, what is the freezing point? C
Saved 3 attempts left Check my work Enter your answer in the provided box. When 23.4 mL of 0.500 M H2SO4 is added to 23.4 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17ºC. Calculate AH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water =...
3 attempts left Check my work Enter your answer in the provided box. A student mixes 78.3 g of water at 76.5°C with 43.1 g of water at 30.7°C in an insulated flask. What is the final temperature of the combined water? PC