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10 logarithmic scale of hydrogen ion concentration Be careful If pH = -log [H+ ], what does [H+ ] equal? If the pH of an aqueous solution is 3.50 at 25 C, what is the hydroxide ion concentration?
A solution containing Pt4+ is electrolyzed with a current of 4.20 A. How long will it take to plate out 65% of the platinum in 0.50 L of a 0.010 M solution of Pt4+
The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
Among the electrolytes Na2SO4, CaCl2, Al2(SO4)3 and NH4Cl, the most effective coagulating agent for Sb2S3 sol is
3NaHCO3 + H3C6H5O7= 3CO2 + 3H2O + Na3C6H5O7 1g of sodium bicarbonate and 1g citric acid are allowed to react. Find the limiting reagent.
If the pressure of chloroform vapor in a flask is 154 mm Hg at 25.0°C, and the density of the vapor is 1.25 g/L, what is the molar mass of chloroform?
Identify the rate determining step, reaction intermediates and the experimental rate law (intermediates can not be in the rate law)
Sodium peroxide (Na2O2) reacts with water to form sodium hydroxide and oxygen gas. Write a balanced equation for the reaction and determine how much oxygen in grams
Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
if the solubility of AgNO3 at 40oC is 211 g per 100 g of water, what mass of this solute can be dissolved in 350 g of water at the same temperature?
what is the density of a piece of metal if it's mass is 201 g and its volume is 18.9 cm3
How many grams of potassium accetate must be added to 2.5 L of .250 M acetic acid
A steel cylinder with nitrogen, hydrogen, and ammonia gases is at 500°C and 4.91 atm. If the partial pressure of nitrogen is 1850 mmHg and hydrogen is 1150 mmHg
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