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A sample of sodium reacts completely with 0.142kg of chlorine, forming 234g of sodium chloride. What mass of sodium reacted?
What is the density of a block of marble that occupies 251cm^3 and has a mass of 623g?" answer in units g/cm^3
C12H22O11(aq) + 3 O2(g) 2 H3C6H5O7(aq) + 3 H2O(l) Determine the mass of citric acid produced when 4.60 mol C12H22O11 is used.
When scuba diving, it is important to come back to the surface of the water from deep dives slowly. If this does not happen, then the diver can get the ?bends?.
Calculate the enthalpy change that occurs when 1.00 kg of acetone condenses at its boiling point (329.4 K). The standard enthalpy of vaporization of acetone is 29.1 kJ · mol -1 .
What types of bonds are responsible for the secondary structure of a protein? How would the addition of a heavy metal affect the secondary structure of a protein?
Acetylene gas (C2H2) is produced by adding water to Calcium carbide CaC2. How many grams of acetylene are produced by adding water to 5g CaC2?
Determine the amount of energy involved in calories given off when 85 grams of H2O cools from 45 degrees Celsius to 25 degrees Celsius?
Dicarbonyl compounds, such as benzil, can be characterized by reaction with o-phenylenediamine to form a substituted quinoxaline.
A student analyzed and recorded two potassium emission spectra: 1) one using 0.10 M Potassium sulfate solution; 2) one using 0.10M Potassium nitrate solution;. Determine why will significant differences be observed in the two emission spectra.
What is the percentage protonation of the solute and Calculate the pH of the solute in an aqueous solution of 0.611 M Aqueous solution of Ammonia
Liquid-in-glass thermometer are of two types:mercury in glass and alcohol plus red dye in glass. the dependence of volume on temperature of mercury and alcohol.
Formation of molecules in a reaction, Using the reaction of hydrogen chloride (hydrochloric acid) and calcium hydroxide to produce water and calcium chloride answer the following
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