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q solution = m solution x C x ?T In this equation, the mass of the solution (m solution) and its specific heat (C) will always be positive numbers. However, both qsolution and it can be either positive or negative numbers. Based on this a) If the solution cools down, is T a positive or negative number? Explain. b) If the solution cools down, is qsolution a positive or negative number? Explain. NOTE: ? is actually a triangle but i coud not copy it.
What technology or combination of technologies would you recommend for treating the following contaminated air streams?
when a gold nugget with a mass of 521 g is added to 50.0 ml of water the water level rises to 77 ml what is the density of gold
Determine the partial pressure. Calculate the total pressure and volume in liters at STP of Nitrogen, Helium and Neon mixture.
A buffer solution is prepared by adding 32.8 grams of sodium acetate, NaC2H3O2 to 1.00 L of 0.500 M acetic acid, CH3CO2H. Ka = 1.8 x 10-5 for acetic acid.
When a 7.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.734 kJ·K-1, the temperature decreases by 0.460 K.
If solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 2021 kPa?
The normal respiratory rate for a human being is 15.0 breaths per minute. The average volume of air for each breath is 505 cm3 at 20.0 degrees Celsius and 9.95 times ten to the fourth Pa. What is the volume of the air at STP that an individual bre..
A gas expands and does P-V work on the surroundings equal to 345 J. At the same time, it absorbs 191 J of heat from the surroundings. Calculate the change in energy of the gas.
Write the rate laws and determine the units of k (the rate constant) for the following reactions: (a) The reaction A + 2B --> C is found to be second order in A and B, and third order overall
calculate the number of moles of gas generated when 0.165grams of aluminum reacts with hydrochloric acid
Calculate the energy (joules) required to achieve the transition from the ground state to the first excited state for this system.
C2H5OH(l) + C3H7COOH(l) C3H7COOC2H5(l) + H2O(l) Determine the mass of ethyl butanoate produced if 3.30 mol of ethanol is used.
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