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Describe the preparation of 2.00 L of a 6.75 ppm NO3 solution from the salt Al(NO3)3.
between 2007 and 2009 the u.s. economy experienced a severe recession. in an effort to stimulate the economy the
At 25 °C and 795 Torr, carbon dioxide has a solubility of 0.0356 M in water. What is its solubility at 25 °C and 2030 Torr?
What volume of ethanol is contained in 35mL (1 fl. oz) of 86 proof liquor, which contains 43%v/v ethanol. *30 mL ethanol *43 mL ethanol *15 mL ethanol *37 mL ethanol
The first steps in the radioactive decay of 257 Uuh involves the rapid and successive emission of 2 alpha particles. [Note: Uuh is the symbol for ununhexium, which is element number 116.]
Find out the eq molar concentration of SCN- in the system.( Kc=[FeNCS2+]/[Fe3+][SCN-] =271.5)
Which of the following reactions is equal to of the product(s)? Check All That Apply. A: Li(s) + 1/2 Cl(g) ---> LiCl(s) B: H2(g) + 1/2 O2(g) ---> H2O(g) C: 2Li(s) + Cl2(g) ---> 2LiCl(s) D: Li(s) + 1/2 Cl2(l) ---> LiCl(s) E: 2H2(g) + O2(g) ---> 2H2..
The work function of an element is the energy required to remove an electron from the surface of the solid element. The work function for lithium is 279.7 kJ/mol
What is the rate law for this reaction. What is the value of the rate constant. How many seconds would it take for the total pressure to be 0.7133 atm
If a 0.0157 M solution of a certain analyte exhibits 47.5% T at a wavelength of 280 nm, what will the percent transmittance be for a 0.0279 M solution of the same analyte? Assume the pathlengths for each measurement are equal.
Nitroglycerin is explosive, decomposing violently via the reaction: 4 C3H5N3O9 (s) ? 12 CO2 (g) + 6 N2 (g) + 10 H2O (g) + O2 (g) If 25.0g of nitroglycerin explodes in a 10.0 L rigid container, calculate the total pressure of all gasses present and..
Glucose oxidation has a standard enthalpy of -2803 kJ/mol. What is the total heat produced by human respiration over the course of one year
an unknown concentration and you have five samples with known concentration of the compound. List 3 pieces of information you need to determine in order to calculate the unknown concentration spectrophotometrically.
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