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Table salt is composed of sodium and chloride. table salt is composed of 60.7% chloride ions. Calculate the mass of sodium ions, in 0.375 grams table salt.
Calculate the number of grams of sulfuric acid in 0.440 of battery acid if the solution has a density of 1.34 and is 39.1 sulfuric acid by mass.
The concentration of sulfuric acid, H2SO4 is 36M. What volume is required to prepare 6.0 L of 0.12 M acid
0.100 moles of NaOH are combined with 0.125 moles acetic acid. The mixture is taken to a final volume of 100.0 ml. What is the expected pH of the solution. Ka = 1.76 x 10^-5
A chemist needs to determine the concentration of a solution of nitric acid, HNO_3. She puts 865 mL of the acid in a flask along with a few drops of indicator.
For the reaction NO2(g)+NO3(g) = N2O5(g), the activation energy is 18 kj/mol and the overall delta E is -136 kj/mol. How times faster will the reaction occur at 50C than at 0C for the forward reaction
Car manufacturers are developing engines that use H2 as fuel. In Iceland, Sweden, and other parts of Scandinavia, where hydroelectric plants produce inexpensive electric power, the H2 can be made industrially by the electrolysis of water.
How many grams of ethylene glycol (automobile antifreeze, {rm C_2H_6O_2}) dissolved in 3.30 {rm kg} of water is needed to lower the freezing point of water in an automobile radiator to 24.5^circ {rm C}?
You are given a box containing at equilibrium at 1000 K 0.102 moles/liter NH3, 1.03 moles/liter N2, and 1.63 moles/liter H2 for the reaction N2(g)+3H2(g)=2NH3(g). Calculate Kp
During the course of an experiment, 10.0 mL of water is added to 25.0 mL of aqueous 0.120 M NaCl. What is the concentration of NaCl in the resulting solution
various types of medicines use in daily life? and classify them into analgesics antipyretics antibiotics sedatives
An increase in which of the following will occur if the reaction temperature is increased? I. Energy of activation II. Collision frequency III. Fraction of collisions with sufficient energy
So hardly change with temperature, determine the temperature in K at which the spontaneity of this reaction changes.
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