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A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. Now, we add sodium hydroxide (NaOH, strong base) until the pH reaches 10. You can neglect any changes in volume. What is the alkalinity of this solution
There is substance that needs to be heated. the substance is gas. If were given T and P of the inlet and outlet, and given two equaitons one a z equation, for example:
A backpacker wants to carry enough fuel to heat 2.9 kg of water from 27 degrees C to 100.0 degrees C. If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the..
It is given that the v.p. of water =233.7 mm Hg.at 70 degree Celsius then calculate the vapor pressure? express your answer in mm Hg ?
Write the structure for the organic reagents and products, name the products and indicate stereochemistry when appropriate
Calculate the temperature of the system once equilibrium has been reached. Assume that CP,m for Au(s) and H2O(l) is constant at their values for 298 K throughout the temperature range of interest.
The freezing point of a solution of 1.048 g of an unknown nonelectrolyte dissolved in 36.21 g of benzene is 1.39°C. Pure benzene freezes at 5.48°C and its Kf value is 5.12°C/m. What is the molecular weight of the compound?
Using the equation Fe2O3+2Al-->2Fe+Al2O3, how many grams of Al are needed to completely react with 135 g Fe2O3
A student wants to conduct an experiment requiring 500 ml of a 3 M sulfuric acid 18 M concentrated sulfuric acid is available. How could the student prepare the desired solution
how many grams of potassium permanganate are needed to decolorize 1 gram of 2-pentene in basic solution?
determine the pH and the concentration of all species in a 0.01 M H2Su solution(closed system). develop the pC- pH diagram ( calculate the species concentrations and graph using a software. indicate on the pC-pH graph where your solution point lie..
Calculate the binding energy of the 2s electron in iron and calculate the binding energy of the 2s electron in iron. Does the new energy agree better with experiment?
The pressure increased as the gaseous reaction PCl5 1 PCl3 +Cl2 occurred. When equilibrium was achieved, the pressure in the tube had increased to 1.25 atm. Calculate Kp.
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