Here BaCl2 acts as limiting reagent. so based on BaCl2 only, we can calculate weight of BaSO4
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will give thumbs up! 3 attempts left Check my work Enter your answer in the provided box. points Water is added to 75.0 mL of a 0.992 M KNO, solution until the volume of the solution is exactly 250 mL. What is the concentration of the final solution? eBook Print References 3 attempts left Check my work Enter your answer in the provided box. points A volume of 54.2 mL of a 0.468 M Ca(NO) solution is mixed with 75.5...
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...
3 attempts left Check my work Enter your answer in the provided box. If 26.45 mL of a standard 0.4573 M KOH solution reacts with 62.70 mL of CH3COOH solution, what is the molarity of the acid solution? м
3 attempts left Check my work Enter your answer in the provided box. Calculate the number of grams of solute in 137.1 mL of 0.258 M calcium acetate. g solute
Saved 3 attempts left Check my work Enter your answer in the provided box. When 161.0 mL of water at 26.0°C is mixed with 91.0 mL of water at 85.0°C, what is the final temperature? (Assume that no heat is lost to the surroundings; d of water is 1.00 g/mL.) PC < Prex Nexo 7 of 14 W
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 =...
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.
1 attempts left Check my work Enter your answer in the provided box. Determine the pH at 25°C of a solution prepared by dissolving 0.30 mole of ammonium chloride in 1.0 L of 0.41 M aqueous ammonia. 12.65
Saved 3 attempts left Check my work Enter your answer in the provided box, Liquid methanol (CH3OH) can be used as an alternative fuel in pickup and SUV engines. An industrial method for preparing it uses the catalytic hydrogenation of carbon monoxide: catalyst CO(g) + 2H2(8) CH2OH(1) How much heat (in kJ) is released when 15.0 L of CO at 85°C and 112 kPa reacts with 14.6 L of H, at 75°C and 744 torr? kJ
3 attempts left Check my work Enter your answer in the provided box. Calculate the pOH of an aqueous solution of 0.062 M NaOH at 25°C. РОН