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If a 220 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.41.0 , what is the average thickness of the sheet in meters?
What is the final volume in milliliters when 0.780 of a 39.7 (m/v) solution is diluted to 25.0 (m/v)? Express your answer numerically in milliliters.
Calculate the pH of a solution formed by mixing 65 mL of 0.30 M NaHCO3 with 75 mL of 0.30 M Na2CO3
A cumbustion analysis was carried out on 1.621g of newly synthesize compound which was known to contain only carbon,hydrogen and oxygen.
At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure
Water dissolves table salt (NaCl) because: A. NaCl is hydrophobic. B. NaCl has a polar covalent bond. C. water molecules surround the Na and Cl ions due to electric attraction.
What is the pH of an 85 mL solution containing .215 M NaHCO3 and .203 M Na2CO3?
A chemist found that a reaction did not take place under any set of conditions. If the chemist added a catalyst, would the reaction then occur?
Give the structure of the phosphorus ylide and carbonyl compound you might use to prepare the following alkenes
What is the change in the boiling point of the aqueous solution? and water how man moles of ions are present is solution
A sample of nitrogen gas had a volume of 500.ml, a pressure in its closed container of 740 torr, and a temperature of 25 degrees celsius. What was the new volume of the gas when the temperature was changed to 50 degrees celsius and the new pressur..
4 HNO3(aq) + Cu(s) => Cu(NO3)2(aq) + 2 H2O(l) + 2 NO2(g) Considering which elements are being oxidized and reduced, determine
determine the specific heat capacity of a metal that has a mas of 14 grams. As the metal cools from 400 degrees celcius to 200 degrees celcius, 364 joules of heat is released
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