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2.86 g of a mixture of butene C4H8 and butane C4H10 is burned in excess O2 to give 8.8g CO2 and 4.14g of H2O. What are the weight percents of butene and butane in the mixture.
Methane (CH4), ammonia (NH3), and water (H2O) all have octets around the central atom, yet they have different shapes and bond angles
how does the hammond postulate explaina. the greater selectivity for bromination vs. chlorination of an alkane?b. the
if a sample of gas at 25.2 C has a volume of 536 mL at 637 torr, what will its volume be if the pressure is increased to 712 torr.
Insoluble sulfide compounds are generally black in color. Which of the following combinations could yield a black precipitate
a buffer solution is prepred by adding 5.50g of ammonium chloride and 0.0188 mol of ammonia to enough water to make 155mL of solution a) What is the pH of the buffer
A solution contains 25g of NaCl per 100.0 g of water at 25 degrees Celsuis. Is the solution unsaturated, saturated or supersaturated
Write a line angle formula of each constitutional isomer of dimethylcyclohexane. Write the IUPAC name of each isomer.
suppose a student attempts to do an ion exchange on a column that is already nearly saturated with CO2+ and Zn2+.
Autoclave that are used to sterilize surgical tools require a tempereature of 120 degree to kill bacteria. At what presure must they operate?
How many grams of Hcl will be produced from the reaction of 50.0mL of a 0.300M CaCl2 according to the reaction:CaCl2 + H3PO4(aq) ----> Ca3(PO4)2 (s) + HCl (aq)
you are given a stock solution of edta at a concentration of 5mm how would you dilution of edta with a final
A is allowed to come in contact with substance B. B has a mass of 46.28 grams and its initial temperature is 86.5oC. These two substances reach thermal equilibrium at a temperature of 64.2oC. If the specific heat capacity of substance B is 1.17 J/..
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