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The initial volume of a sample of argon gas is 938 mL at 178°C. If the pressure is held constant and the volume is changed to 427 mL, what will be the new temperature (in °C)?
25.2 mL of qater are placed in a graduated cylinder. A 22.6 g stone is dropped in, and the water level rises to 32.4 mL. Find the stone's density.
Give the structures of a hydrocarbon that has six carbon atoms and a) three vinylic hydrogens and two allylic hydrogens b) three vinylic hydrogens and no allylic hydrogens
So could you please explain how you can estimate the order of increasing melting points for the following compounds. Why is the estimate rather inaccurate
What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? How much ligroin would be required to remove 98.5% of A in a single extraction?
Draw the product of the following reaction between propanoyl chloride and p-methoxynitrobenzene. Include all formal charges.
The reaction between NO2 and CO to produce NO and CO2 is believed to occur via two steps shown below. Step 1: NO2 + NO2 ? NO + NO3
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite. MgCO3(s) ? MgO(s) + CO2(g) ?Hrxn = 117.3 kJ
Burning a straight chain alkane in oxygen gas yields a reaction: CnH(2n+2) + aO2 = bCO2 + cH2O determine the factor "a" as a function of "n" for equations where n is equal to or greater than 1.
3.00 mole of Ne has a total pressure of 24.5 atm at 25 degrees C. How many moles of He are in the flask?
Calculate and record the following for the experiment performed with 20g KClO. mass of the crucible with manganese(IV) dioxide (in grams): 54.200g
What are the molecular weights of ether and dimethylether? Are they isomers of each other or is each an isomer of something else? Why are there significant differences in their chemical and physical properties?
The Ka of lactic acid, HC3H5O3, is 1.410?4. (a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC3H5O3 and 60.0 mL 0.1 M C3H5O3- to give a final volume of 100.0 mL. What is the pH of this buffer
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