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If 100.0J of energy are added to 25.0g of water at 50 degrees celcius,what will the final temperature of the water be?
The valve between these Tanks X and Y is opened and the gases are permissible to mix. After the gases have had time to mix, calculate the partial pressure of the oxygen gas?
A fluoridated water supply contains F- at a concentration of 8.9 ppm. What is the maximum concentration of Mg2+ that can exist in this water supply without causing precipitation.
The % mass composition of 0.1458g sample of a compound was measured by burning the compound in an excess of oxygen.
For the following reaction, Kc = 0.513 at 500 K . N2O4(g) 2NO2 (g)
Calculate the mass of silver chloride required to plate 135 mg of pure silver. Silver chloride, often used in silver plating, contains 75.27% Ag.
What is the de Broglie wavelength of a 145 g baseball traveling at 30.0 m/s (67.1mph)? Is the wavelength much larger or smaller than the diameter of an atom .
Solving this question helps the student to understand what is happening in a chemical reaction and to balance the given equation.
If 23mL of 6.4M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid.
Determine how much Ammonia would be formed if 187 grams of calcium carbonate CaCO 3 are formed?
Large quantity of ammonia are burned in the presence of platinum catalyst to give nitric oxide as d first step in the preparation of nitric acid.
calculate the pH a solution that contains 0.800% C5H5N by mass and 0.815% C5H5NHCl by mass
An aqueous solution of ethanol, C2H5OH, is 19.00% ethanol by mass and has a density of 0.9700 g mL-1. Calculate the molarity of the ethanol solution.
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