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At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an average power of approximately 8.00 kJ·s-1·m-2. If the sunlight consists of photons with an average wavelength of 510.0 nm, how many photons strike a 3.30 cm2 area per second?
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
The jewelry contains only gold and silver, which have densities of 19.3 and 10.5 , respectively. If the total volume of the jewelry is the sum of the volumes of the gold and silver that it contains, calculate the percentage of gold (by mass) in th..
How many grams of H2O (g) are theoretically produced from 1026.9 g of sucrose, C12H22O11 (g), and an excess amount of oxygen? C12H22O11 (g) + O2 (g) → CO2 (g) + H2O (g) (unbalanced)
The resulting mixture exerts a pressure of 745 mm Hg at 95 C. What was the mass of the original sample?
the preparation of the esters given in this reaction, the reaction product is extracted with 5% sodium bicarbonate solution (NaHCO3) in the isolation step
Calculate th pH of 1.00 L of a buffer of 1.00 M CH3COONa/1.00 M CH3COOH to which 0.210 mol of NaOH has been added
A 0.300 M solution of an acid, HZ, has a pH = 1.301. What is the value of the ionization constant, Ka, for this acid?
Describe the preparation of 1.5 liters of a 0.1 M acetate buffer, pH 5.0, starting from solid sodium acetate trihydrate
At a temperature of 425 0C and a pressure of 735 mmHg, how many grams of {NH_3} can be produced when 4.40 L of {NO_2} react.
What is the concentration of g salt per 100 g water of a saturated solution in which 3.82 g of salt are dissolved in 9.54 g of water?
Calculate the solubility of Ce(IO3)3 (pKsp=10.86) in: a) distilled H20 b) 0.300 M Ce(NO3)3 solutiom c) 0.200 M KIO3 solution
When the following equation is balanced, what is the mole ratio of H2O to Be3N2?
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