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What is the formula weight of I2? (Enter unit as g/mol)
What mass of I2 is needed to add to a 250 mL volumetric flask to produce a solution that is 0.20 M? (Enter unit as g.)
draw the shape of the molecules and give the orbital geometry around the central atom; the molecular geometry; and give the hybridization state
Formation of molecules in a reaction, Using the reaction of hydrogen chloride (hydrochloric acid) and calcium hydroxide to produce water and calcium chloride answer the following
-Calculate the number of mmol of Br2 present in 0.48mL of bromine solution, -Calculate the number of mmol in 100 mg of trans-cinnamic acid (use a MW calculated to 2 decimal places)
50.0 mL of a 1.70 M solution is diluted to a volume of 248 mL. A 124-mL portion of that solution is diluted using 185 mL of water. What is the final concentration
The compound aluminum chloride is widely used to control chemical reactions in industry. It is made by the following reaction: Al2O3(s) + 3C(s) + 3Cl2(g)→ 2AlCl3(s) + 3CO(g)
Given the following thermochemical equations, C2H2(g) + 5/2 O2(g) -----> 2CO2(g) + H2O(l) enthalpy = -1299.5 kJ
How many moles of magnesium and moles of chlorine ions are present in 123.4 mL of a .345 M solution of magnesium chloride
What is the pH of the solution obtained when 135 mL of 0.618 M NaOH is diluted to 16.0 L with water?
Diethyl amine density (1.0475 g/mL) Diethyl amine MW 73 Diethyl ether density (0.714 g/mL) Hint: Consider at which temperature the reaction is run. Which of the boiling points and melting points might come into play?
How much of a 6.0 M sucrose solution should be used to make 79.0 mL of a 0.055 M solution.
What volume will a mixture of 0.65 mole H2 and 0.63 mole Kr occupy at 741 torr and 53.0 degrees celcuis
Calculate the energy in kJ/mol of a mol of photons in the gamma ray region of the electromagnetic spectrum that has a wavelength of 4.13 pm. Express answer in scientific notation.
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