Determine the numbers of grams of antifreeze
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).
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Calculate the molar mass of the acid when a 0.2688-g sample of a monoprotic acid neutralizes the 16.4 mL of0.8133 M KOH solution.
Determine the concentrations of Cu2+,Cu(NH3)42+, and NH3 at equilibrium if 2.50 g of CuSO4 are dissolved in the 9.0 X102 mL of 0.30 M NH3,. Explain in detail.
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 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.
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?
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
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