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A student ignites 1.834 g of magnesium in air using a Bunsen burner in the lab. Calculate the mass theoretical yield of MgO obtainable in the experiment.
a certain first-order reactio has a rate constant of 3.60times10-3 at 45 . how many minutes does it take for the
Given the DNA template strand 3'GCATTCAAG5' write the amino acid sequence in the N terminal to the C terminal direction. Use the three letter amino acid abbreviations.
Polar solute, polar solvent. Nonpolar solute, Nonpolar solvent. Or Nonpolar solute, Polar solvent
How many total moles of ions are released when each of the following samples dissolves completely in water
if it takes 1656 kj/mol to break all bonds in methane, what is the bond empathy of one C-H bond?
What volume H2 can be produced at 780 mm Hg and 15 degrees Celsius from 1 mole Al, 1 mole NaOH and 2 moles H2O. --> Al(s) + NaOH(aq) + H2O (l) ---> NaAl(OH4) (s) + H2(g)
A sample of zinc nitride, Zn3N2, contains 39.0 g of zinc. How many nitride ions are present
Suppose you pour 20 mL of silver nitrate into a beaker with 80 mL of water (H20) in it. You also pour 20 mL of silver nitrate into a separate beaker, but this one contains 80 mL of salt water (NaCl). Is the percent strength of the silver nitrate th..
If the freezing point constant for water is 1.86 ºC/m and assuming ideal conditions, determine the freezing point of a 0.0100 m aqueous solution of Na2SO4.
consider the reaction H2S+I2>2HI with equilibruim K= 0.81 . if an initial concentration 1.0 M of each component is placed in close container, what will be the concentration of H2S at equilibruim
A tablet containing 500.0 mg of aspirin (acetylsalicylic acid or HC9H7O4) was dissolved in enough water to make 100 mL of solution. Given that Ka = 3.0 × 10-4 for aspirin, what is the pH of the solution
Draw the structure of the organic product that is formed when the compound shown below is treated with the following reagents
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