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The Cliffs of Dover are chalk cliffs found along the English Channel near Dover, England. The Scarborough Bluffs are limestone cliffs along the north shore of Lake Ontario. Both formations are largely made out of calcium carbonate and both are eroding at an alarming rate. Compute the solubility of calcium carbonate in both seawater also lake water suppose the ion concentration in lake water is negligible and determine if seawater is a greater threat to the Cliffs of Dover than lake water is to the Scarborough Bluffs
each quarter produced by the u.s. mint is made up of copper and nickel alloy. in each coin there is 0.00740 moles of ni
When 20.6 gm of methane and 39.7 gm of chlorine gas undergo a reaction that has a 73.3 % yield. What mass of CH3Cl forms. Hydrogen chloride also forms.
if 836.8 Joules are added to 25 grams ammonia at 37 degrees Celsius, what will the final temperature be?
A concentrated sulfuric acid solution is 65.0% H2SO4 by mass and has a density of 1.55 g/mL at 20°C. What is the mass of 8.00 L of the concentrated sulfuric acid solution?
Calculate the work done (in joules) if the gas expands against a constant pressure of 2.1atm. Enter your answer in scientific notation.
a 430 cm3 of water at 93degc is mixed with 95 cm3 of water at 16degc. calculate the final equilibrium temperature
calculate the molar enthalpy change when mercury is cooled 10 k. the molar heat capacity of mercury is 27.8
The vapor pressure of trichloromethane is 40.0 mmHg at -7 degrees C, and its heat of vaporization is 29.3 kJ/mol. Estimate the normal boiling point of trichloromethane.
Describe how would your result be affected if you added the NaOCl solution in 10 seconds rather than 1ml/minute
Write a chemical equation for the reaction of an aqueous solution of sodium stearate with each of the following
How many grams of NaCl would be needed to make 1.5 liters of a solution containing 200mEq of Cl-/liter? 2. How many grams of CaCl2 would be needed to make 0.5 liters of a solution containing 150mEg of Cl-/liter
Why do compounds change color when separation by TLC was repeated and dipped in an acid soultion?
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