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What is the molarity of a solution of 14.0 g NH4Br in enough H20 to make 150 ML of solution?
Using a solution of (HOC 2 H 2 )3NHCl, solution in which Kb, ((HOC 2 H 2 )3N) = 5.9 × 10 -7 then determine what is the pH of a 0.010 M triethanolammonium chloride,
determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
Identifying and balancing the different types of chemical reactions. Evaluate which processes represent chemical reactions.
Determine the average atomic mass of boron is the natural abundance of 10B weighing exactly 10.0129 amu is 80.1% and the natural abundance of 11B weighing exactly 11.0093 amu is 19.9%.
Lewis Structure and state which of the given compounds are isomers - There are three compounds are given as I. pentane , II. 2-methylbutane , III. 2,3-dimethylbutane , IV. 2,2-dimethylpropane V.
95.0mL of rm H_2O is initially at room temperature (22.0rm{} ^{circ}C). A chilled steel rod at 2.0rm ^{circ}C is placed in the water. If the final temperature of the system is 21.4^{circ}C.
Determine how many grams of solute would separate if the quantity of the solvent is 129 grams if a saturated solution of ammonium nitrate at 75 °C is cooled to fifteen degree Celsius?
Compute the atomic mass of 109Ag if natural abundance of 107Ag is 51.87% & atomic mass =106.905 amu and determine the probability of particle would be located in the range
10M NaF solution is slowly added with stirring, to a solution that contains 10M Ca(NO3)2 and 10M Cr(NO3)3 .Which salt CaF2 - or - CrF3 precipitates first? The Ksp for CaF2 = 5.3x10^-9 & Ksp for CrF3 = 6.6x10^-11
The solubility of a gas in H2O at a temperature of 25 °C and a pressure of 1.2 atm is 0.042 M. What will the solubility of the same gas be in H2O at the same temperature at 3.4 atm.
Determine how much concentrated solution can you take to form 1.15 Litres of 0.105M Nitric acid by mixing with H 2 O?
A sample of water 53 g with a temperature of thirty six degree celsius is combined to 250 grams of H 2 O at 91 degree Celsius in an insulated container. Determine the final temperature after thermal equilibrium is reached?
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