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Consider the combustion reaction between 23.0mL of liquid methanol (density = 0.850 g/mL) and 11.5L of oxygen gas measured at STP. The products of the reaction are CO2(g) and H2O (g). Calculate the volume of liquid H2O formed if the reaction goes to completion and you condense the water vapor.
Hydrogen cyanide, HCN, is a poisonous gas. The lethal dose is approximately 300 mg HCN per kilogram of air when inhaled.
What is the concentration of the hydroxide ion given that the concentration of the hydronium ion is 1.5 x 10^-5 M
How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)
A gas at 740 mmHg pressure at 25 degrees C is cooled to -10 degrees C. What is the final pressure in mmHg?
portion of that solution is diluted by adding 167 mL of water. What is the final concentration? Assume the volumes are additive.
What is the minimum flow rate of water (? = 0.990 g/mL) required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste gas stream?
Use oxidation states to identify the oxidizing agent and the reducing agent in the following redox reaction. Express both answers as chemical formulas. 1. 2Na(s)+2H2O(l)--->2NaOH(aq)+H2(g)
Given that mercury has a Hvap of 59.11 kJ/mol and its normal boiling point is 356.7°C, calculate the vapor pressure in mm Hg at room temperature, 25°C.
Which of the following statements related to kinetic-molecular theory of gases is correct for an ideal gas? A. Gas particles move in a zigzag pattern until they collide with something.
What is the percent by mass of a solution in which 60. g of NaOH are dissolved in sufficient water to make 100 g of solution.
A solution of NaCl dissolved in water will have 1) a lower freezing point than pure water 2) a lower boiling point than pure water 3) larger crystals when frozen than pure water 4) a lower density than pure water 5) a higher freezing point than pu..
Write a complete set of quantum numbers for the fifth electron added to a hydrogen ion. (ie, the fifth electron in any electron configuration). N= l= ml= ms=
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