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Compare and contrast empirical and molecular formulas. How are they similar? How are they different?
A full 50.0 L He cylinder that is attached to a gas chromatograph contains 1.20 kg of the gas. During transport, the temperature of the cylinder may vary from 0ºC to 40ºC. What minimum pressure must the tank be able to sustain
A particular electrons position can be measured to a precision of 0.058nm, what is the minimum uncertainty in the electron' velocity? Me = 9.109 x 10E-31 kg, c= 3.00 x 10E8 m/s , h = 6.63 x 10E-34 js
Two syntheses using a grignard reagent, starting with an alkyl halide and later
Calculate the heat capacity of satan, i. e. Ni . if 30.0g of nickel at 100.0 c raises the temperature of 25.0g of water from 22.0 c to 30.8 c.
what will be the pressure of the gasesous water in a 4.25 L flask at 30.0 degrees celcius.
how many degrees of temperature rise will occur when a 25.0 g block of aluminum absorbs 10.0 kj of heat? the specific
Solutions of silver nitrate as well as aluminum iodide are mixed together, forming solid silver iodide as well as aqueous aluminum nitrate.
A 0.5560 g sample of Cl- sample was dissolved to make 250.0mL of solution. A 10.00mL aliquot of this solution was titrated with 0.01157 M AgNO3 to give a 33.49mL endpoint. Explain what is the % Cl- in this sample.
A 5.00-mL aliquot of a solution that contains 4.74 ppm Cu2+ is treated with an appropriate excess of 1,10-phenanthroline and diluted to 50.0 mL. The molar absorptivity of a Cu2+- 1,10-phenanthroline solution at 435 nm is 6940 L mol-1 cm-1. What is..
Determine the volume of NaOH solution needed to prepare 26.2 grams of Na3PO4. The NaOH solution is 12 percent NaOH by mass and has a density of 1.333 g/mL
Consider the reaction below. N2(g) + O2(g) ? 2 NO(g) Part A: How many moles of NO are obtained when 0.032 mol of N2 is completely reacted?
Calculate the reaction quotient Qsp for the salt MX in a solution prepared by mixing 25.0 mL of a 2.10E-8M solution of the cation and 25.0 mL of a 3.00E-7M solution of the anion. Enter your answer in scientific notation with two decimal places.
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