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How much diesel fuel does it take to charge a mobile phone? One gallon of diesel fuel contains about 1.44E8 J of useful energy. The battery in a mobile phone contains about 15300.0 J of energy when fully charged
Based on the stereochemistry of the addition of bromine to cinnamic acid write the structure of dibromide product(s) that you think will be formed as the result of the reaction of Z-2-pentene with bromine.
A 0.150 M aqueous solution of the weak inorganic acid HA was prepared from the pure compound, and three 50.0 mL aliquots were transferred to 100.0 mL volumetric flasks.
The pressure of a sample of gas at 10.0 C increases from 700. mm Hg to 900. mm Hg. What is the new temperature?
Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL.
petit discovered the empirical rule that the specific heat times the atomic weight of many solid elements is a constant: Using this rule, calculate the specific heat of copper and platinum.
vessel above eqm is established and at eqm, partial pressure of SO3 and SO2 are same, calculate no. of moles of O2 present at eqm
You dilute 1g of the soap 1:106 and plate it on standard plate count agar. After 24 hours of incubation, there are 168 colonies. How many bacteria were on the soap? How did they get there?
If 18.6 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia?
what volume of methane, measured at STP, must be burned? (ΔH°combustion for CH4 = -891 kJ/mol)
Calculate the amount of energy needed in calories to heat 145 g of water from 22.3 degrees celsius to 75.0 degrees celsius. (water in j/g degree celsius = 4.184, cal/ g degree celsius = 1)
Consider a glass of 215 mL of water at 28°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740.0 torr and a temperature of 25.0°C.
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