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14.312g of magnesium nitrate were dissolved in water to produce 650ml of solution.
Calculate:
a) The formual concentration of he solution.
b) The species or equilibrium concentrations of the solution.
The density of concentrated hydrochloric acid is 1.19 g/mL and 37.5% HCl by weight. Describe how you would prepare 500mL of a 0.25M solution of HCl.
Calcium hydroxide reacts with carbon dioxide to form calcium carbonate. The reaction for this process is: Ca(OH)2(s) + CO2(g) ? CaCO3(s) + H2O(g), ?H = -69.1 kJ What is the enthalpy change if 380 g of calcium carbonate is formed? could you show wo..
Calculate the mass of sodium hydroxide that must be added to 1.00 L of 1.00 M HC2H3O2 to double the pH of the solution (assume that the added NaOH does not change the volume of the solution). Ka of HC2H3O2 = 1.8 x 10 ^-5
calculate the molar absorptivity (epslion) of Cu2+ at 620nm given that the curvettes used in lab had a pathlegth of 1.00 cm.
An asteroid is in the shape of sphere and has a mass of 1000 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.2 meters
If a temperature increase from 10 °C to 30 °C doubles the rate constant for the reaction, what is the value of the activation barrier for the reaction.
As food manufacturers add vinegar to food preparations to make them tart, rather than pure acetic acid,
How would you expect the graph to look if you tried to distill a mixture of pentane and touene. Draw and lable the graph
calculate how many joules are needed to heat 18.2g of tin from 24cdeg to 37.7cdeg?we needed a 50ml of a 0.1 m tris
calculate an approximate heat of reaction for the combustion of one mole of methane gas ch4 to form gaseous h2o and
upon responding to a 200 a.m. domestic transportation mishap your hazmat team determines that a liquefied compressed
You start with 100.0 mL of a 0.2500 M solution of NaCl sitting in a beaker. After several days you test the solution and find that it is now 0.3125 M. How much water must have evaporated?
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