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You need to make an aqueous solution of 0.195 M barium bromide for an experiment in lab, using a 500 mL volumetric flask. How much solid barium bromide should you add?
A 5.0 L ballon has a pressure of 1.0 atm at sea level, where the temperature is 28°C. The balloon was let loose and ascended to a height in the temperature where the temperature is 11°C. What will be the volume of the balloon if the atmospheric pressure at the new altitude is 0.65 atm?
2.99 • 108
What is the differences between Ionic solids, Molecular solids, Covalent solids, and Metallic solids?
What is the time required to produce 6750 coulombs by passing current of 4.5amps
How many pesos are there in one mole of pesos? Do you think Manny Pacquiao will have one mole of pesos? Does Bill Gates have one mole of dollars? (Relate the mole to real life situations)
A 25.0 L tank contains 2.0 kg of neon gas with a pressure of 98.0 atm at 25°C. How many kilograms of O₂ can fill the tank under the same pressure and temperature?
Combustion: C
2
H
4
(g)+O
2
(g)⟶
Δ
–
–
Differentiate between an amorphous and a crystalline solid.
Identify the property of water that explains why:
1. Humans can maintain their body temperature.
2. Water expands when cooled.
3. There is a large drop in temperature during evaporation.
4. A coin dropped on the surface of a water-filled container does not overflow
