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A copper cube measuring 1.57cm on edge and an aluminum cube measuring 1.66cm on edge are both heated to 57.1oC and submerged in 100.0mL of water at 21.8oC. What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.) Im am really lost with how to even start this problem, please explain solution as much as possible.
The rate is measured at 300 K. To what temperature must the reaction be raised to double the rate? a) 310k b)333k c)353k d)363k e)373k f)412k
What is the pH of the buffer that results when 11 g of NaCH3CO2 is mixed with 85 mL of 1.0 M CH3CO2H and diluted with water to 1.0 L? (Ka of CH3CO2H = 1.8 ´ 10-5)
Bomb Calorimeter, gross heat of combustion, In the following experiment 1.1651g of benzoic acid (6318 cal/gm) produced a net corrected temperature rise of 3.047C, also 8 cm (2.3 cal/cm) of fuse wire were consumed in the firing.
A sample of neon (Ne) occupies 1700 mL at STP. At constant pressure, what temperature is necessary to increase the volume to 2100 mL?
What is the molecular formula of the compound 2,3-dimethyl-4-cyclopentyl-5-ethyldecane?
A gas occupying a volume of 695 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
Acetylene, C2H2, will burn in the presence of oxygen. 2C2H2(g)+ 5O2(g) -> 4CO2(g)+ 2H2O(g) how many grams of water can be produced by the reaction of 2.40 mol of C2H2 with 7.4 mol of O2?
6Na+Fe2O3->3Na2O+ 2Fe. If you are provided 20.0 moles of sodium & excess iron (III) oxide, how many moles of iron would form?
If 8.6 L of NO is combined with excess O2 at STP, what is the volume in liters of the NO2 produced?
Calculate the ratio of HCL molecules in the first excited rotational state to those in the ground state @ 25 C. Assume an equilibrium bond distance of 1.275 angstroms.
Calculate the mass of water formed by the complete reaction of 935 g of propane (C3H8) with excess oxygen. (Write a balanced equation)
What is the density of gallium in grams per cubic centimeter at 25 C if a 1.00 cube has a mass of 0.2133.
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