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Calculate the work (in kJ) when 1.70 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K
The heat of vaporization of water is 40.66 kJ/mol. Assuming sweat is 100% water, how much heat is removed from your body through the evaporation of 1.86 g of sweat
A 155 mL sample of rainwater is titrated using 0.0095 M NaOH solution. If 4.8 mL of the NaOH solution was required to reach the endpoint, what was the pH of the rainwater?
Define the normal boiling point of a liquid. Explain why atmospheric pressure affects boiling points of liquids.
A boiler is used to heat steam at a brewery to be used in various applications such as heating water to brew the beer and sanitizing the brewing tanks. 81.0% of the heat produced by the boiler is used to create saturated steam at 18.0 bars (absolu..
How many constitutionally isomeric monochlorides can be formed on free-radical chlorination of 2,3,3-trimethylpentane? trimethylpentane + Cl2 reacted with heat
How many grams of potassium chlorate decompose to form potassium chloride and 450. mL O2 at 128°C and 750. torr?
Ammonia is produced by reacting nitrogen gas and hydrogen gas. N2(g) + 3H2(g) 2NH3(g) + 92kJ. for each of the following changes at equilibrium, indicate whether the equilibrium shifts toward product or reactants or does not shift
When the electrons return to the ground state, they lose the excess energy in the form of 640 nm photons. What is the energy gap between the ground state and excited state in the laser material? answer is in J i was absent in class and my test is ..
What sequence of steps represents the best synthesis of 4-heptanol (CH3CH2CH2)2CHOH?
The compound BeBr2 has a total of how many shared electrons and how many non-bonded electrons?
Calculate the capacitive reactance, the impedance, and the phase angle, phi, for a series RC circuit having a frequency, f of 1.00e+04 Hz, resistance,
A gas occupies 4.04 L at 860 torr and 10C. What volume will it fill if the pressure is changed to 731 torr and the temperature is raised to 43C
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