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1. State the symbol of a sodium ion, Na+ followed by the formula of a sulfate ion, SO42-
2. State the expression 147N+α, where α is the lowercase Greek letter alpha.
3. State the chemical equation 2H+(aq)+S2-(aq)→H2S(g).
Express your respond as a chemical equation.
Draw all stereoisomers of 3-heptene. Position the groups attached to the double bond (120° bond angles) to indicate the stereochemistry.
Consider the reaction represented by the equation?2SO2(g) + O2(g) 2SO3(g). For the system at chemical equilibrium, which of the following explains what happens after the volume of the reaction mixture is increased (assume constant temperature)
Calculate the number of formula units of the compound and the number of each ion in 3.75 moles of AlCl3.
When the flask was re-filled with an unknown gas, the same number of moles leaked out in 2.84 hours. Identify the unkown gas.
if you had a mixture of three compounds phenacetin acetaminophen and aspirin a tlc plate showed three spots of rf 0.1
What volume (in mL) will it occupy at the same pressure and 277 K? Round your answer to zero places past the decimal.
A buffer solution contains .20 M aniline (C6H5NH2 Kb= 3.9 *10^-10) and .20 M anilinium chloride (C6H5NH3^+) Cl^-. What is the pH of this solution
A 3.9336 g mixture sample of BaCl2.2H2O (244.26g/mol) and KCl (74.55g/mol) was dissolved in water and diluted to 500.00 mL. A 25.00 mL of the solution is titrated with 0.1250 M AgNO3 with K2CrO4 as an indicator.
Calculate the unit-cell edge length of the densest diamond. Assuming the cell dimensions are fixed, how many C atoms are in the unit cell of the diamond with the lowest density
You need to make a diluted solution of HCl. Your concnetrated acid is 12M. How many L of the 12M HCL will you need to make 0.76 L of a 1 M HCL solution? Your answer must inlcude units
How much heat is required to warm 211 g of ice from -45.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
What is the concentration of the final solution obtained when 200.0 mL of a 0.00600-M solution of Red #40 dye is added to 400 mL of a 1.2 x 10^-2 solution of Red #40 dye to make a total volume of 600.0 mL?
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