What are the concentrations of OH– and H in a 0.00086 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation. [OH-]= [H+]=
continued If you have ever peeled the label off of a glass jar, you may have noticed that the gue does not easily wash off with water. However, it can be easily removed with another common household solvent-fingernail polish remover (ethyl acetate). What does this tell you about the chemical composition of the gue? Explain your answer. 13 A solution...
3.0 PROCEDURE: For each reaction, you should write a total molecular reaction, a total ionic reaction and then remove any spectator ions to produce a final net ionic reaction. In order to simplify your task each reaction has its driving force listed. In more advanced General Chemistry courses, you will be expected to find the driving force yourself (based on...
SUTULUI 4. Calculate the molarity of a 50% sulfuric acid solution by mass. The density of g/mL. 5. How many grams of CO2 are there in a 250.0 mL sample of sea water if the concentration of CO2 is 295 ppm? Assume the density of sea water is 1.03 g/ml.
Can anyone solve question 32? A basic solution does not contain H30+ A neutral solution does not contain any H3O+ or OH- A neutral solution contains [H20] - [H30-1 In a neutral solution the pH must equal 7 Question 31 1 pts ho What is the concentration of hydroxide ions in pure water at 35.0°C. if Kw at this temperature...
QUESTION 1 43.2 mL of aqueous 0.255 M Pb(NO3)2 is mixed with 36.1 mL of 0.415 M NaCl. The equation for the precipitate reaction is: Pb(NO3)2 (aq) + 2 NaCl (aq) --> PbCl2 (s) + 2 NaNO3 (aq) How many moles of PbCl2 are formed? (with correct sig figs) QUESTION 2 What volume (in mL!!!) of 1.28 M HCl is...
31.)Show the calculation of the boiling point of a solution made by dissolving 15.9 grams of the nonelectrolyte C3H7OH in 350 grams of water. Kb for water is 0.51, BP of pure water is 100oC. 30.)Show the calculation of the freezing point of a solution made by dissolving 12.6 grams of the nonelectrolyte C2H5OH in 200 grams of water. Kf...
Coke has a pH of 2.6. Assuming that the acidity of the Coke is due solely to carbonic acid and the density of Coke is 1.11g/mL, then the carbonic acid concentration calculates to be 0.86% by mass in Coke. What is the volume of 0.02M sodium hydroxide required to neutralize an entire can of Coke which is 374g? The molar...
interpretation of a chemical change and nomenclature report pagea Interpretation of a Chemical Change & Nomenclature Report Pages Observations: Reaction Appearance Touch (Hot, cold, or no change) Smell (Describe) Did reaction occur? (yes/no) 1. List the reactions (by number) that: a. formed a precipitate: b. changed color: c. produced a gas: d. were endothermic: e. were exothermic: 2. Name the...
How did they get the density of ice and velocity of water here? Plz, tell me how to get these value by calculation. Thanks EXAMPLE 14.1 Explosion over an Ice Sheet Goal Calculate time of travel for sound through various media. Problem An explosion occurs 275 m above an 867-m-thick ice sheet that lies over ocean water. If the air...