Determine the ph of a saturated zinc hydroxide solution
Calculate the pH of (a) a solution that is 0.40 M CH3COOH and 0.20 M CH3COONa. (b) a 0.40 M CH3COOHsolution. Determine the pH of a saturated zinc hydroxide solution?
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Using iron and chromium as examples, explain the four chemical or physical properties in which the transition elements and their compounds differ from those of aluminum, magnesium and their compounds.
What facts regarding solution of the quadratic equation can be reduced from discriminant of quadratic formula? Or we can say, what different kinds of solutions are possible depending on value of discriminant.
Determine the numbers of grams of antifreeze must be dissolved in the 300 g of water in order to reduce the freezing point of the water to-13.02o C under 1 atm pressure (Kf:1.86 o C/molar and C3H5(OH)3: 92.09g/mol).
Determine the probability that there will be one or more empty seats for any one flight? Find out the mean and standard deviation for this random variable.
A quantity of a diprotic acid which is having 5.00-g, was dissolved in the water and made up to exactly the 250 mL. Determine the molar mass of the acid if the 25.0 mL of this solution needed 11.1 mL of 1.00 M KOH for neutralization. Suppose that
Knowledge of economics, why is it probably accurate to believe that you can think of nothing better to do with your time right now than to study economics
Determine the probability that the actual weight is within 0.1 g of the prescribed weight? Determine the probability that the actual weight differs from the prescribed weight by more than 0.3 g?
At sea level a barometer having a cross-sectional area of 1 cm2 calculates a pressure of 76 cm of mercury. The pressure exerted by this column of mercury is equal to the pressure exerted by all the air on 1 cm2 of Earth's surface.
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Problem: What is the concluded viewpoint on democracy based on the following factors? Positive or negative?
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