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Hospital X-ray generators emit X rays with wavelength of about 15.0 nanometers (nm), where 1nm=10^9-m. What is the energy of a photon of the X rays?
What is the theoretical yield (in g of precipitate) when 16.3 mL of a 0.586 M solution of barium hydroxide is combined with 18.7 mL of a 0.688 M solution of iron(III) nitrate
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. Use thermodynamic derivation to support your explanation.
Consider the titration of a 25.0 -mL sample of 0.105 M HC2H3O2 with 0.125 M NaOH. Determine the pH at 6.00mL of added base, the pH at the equivalence point.
Once equilibrium is reached, the final temperature of the water-metal mixture is 28.2oC. What is the identity of the metal
If 2.5 mol of ethylene oxide are decomposed at 93 degrees C, what will be the final temperature of the products? The heat capacity of the products is 110.13 J/ molC.
NaCl(aq) + H2O(l) Cl2(g) + H2(g) + NaOH(aq) (b) How many moles of NaOH(aq) are formed in the solution in this process? _ moles of NaOH(aq) are formed.
The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
How many grams of NaCN would you need to dissolve in enough water to make exactly 325 mL of solution with a pH of 10.00
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.890-g sample of Mg metal is added to 150.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many g of H2 are formed
From data below, calculate the total heat (in J) associated with the conversion of 0.499 mol ethanol gas (C2H6O) at 301°C and 1 atm to liquid ethanol at 25.0°C and 1 atm.
when separated from a water solutioncuso4 forms a hydrate with 5 water molecules per formula unit. if 45 g of anhydrous
you need to titrate 38.2 ml of an acetic acid solution ch3cooh. acetic acid is a monoprotic acid. you begin your
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