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A balloon has a mass of 0.5 g when completely deflated. When it is filled with an unknown gas, the mass increases to 1.7 g. You notice on the canister of the unknown gas that it occupies a volume of 0.4478 L at a temperature of 50 °C. You note the temperature in the room is 25 °C. Identify the gas.
Specify which compounds in the following pairs of ionic compounds has a higher lattice energy. (a) KCl or MgO (b) LiF or LiBr (c) Mg3N2 or NaCl.
Problem- a heat lamp produces 16.0mW of yellow light. In 5.50 h, the laser emits 1.43*10^20 photons. what is the wavelength of the heat lamp in meters. 1W= 1 J/s
Problem- What is the density in (g/L) of a sample of nitrogen gas that occupies a volume of 6.78L at a pressure of 2.43 atm and temperature of 40.6 degrees Celsius
If 329mL of hydrogen gas is collected over water at 25 Celcius at a total pressure of 748mm Hg , how many grams of { Zn reacted
What are the freezing point and boiling point of an aquenous solution of 15.5g glucose (C6H12O6) dissolved in 150 g of water?
rotational absorption lines from 1h35cl gaswere found at the following wavenumbers 83.32 104.13124.73 145.37 165.89
Sulfuric acid is a component of acid rain formed when gaseous sulfur dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous sulfuric acid.
What is the change in internal energy (in J) of a system that absorbs 0.836 kJ of heat from its surroundings
If 18.4 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
Sketch a potential energy versus reaction coordinates diagram for the following reaction
What volumes of water (steam) and nitrogen monoxide are measure under same conditions of T and P.
Estimate the average spacing between water molecules in liquid water by making use of 2 pieces of information: (a) liquid water has a density of 1 g/cm^3
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