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When 6.545 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 20.54 grams of CO2 and 8.408 grams of H2O were produced.
In a separate experiment, the molar mass of the compound was found to be 70.13 g/mol. Determine the empirical formula and the molecular formula of the hydrocarbon.
Enter the elements in the order presented in the question.
empirical formula = ______
molecular formula = ______
Write a complete, balanced equation for this double displacement reaction. (Hint: the solid is a compound of Ni ions and hydroxide ions.) Don't write the net ionic equation but rather the complete form with neutrally charged compounds with all of ..
Calculate the pH of a 500.0 mL solution containing 0.75 M HC3H5O3 (Ka = 1.4 x 10-4) and 0.25 M NaC3H5O3.
A population of individuals was exposed to lead contamination in drinking water at the concentration of 27 parts per billion (ppb).
Calculate the pH of a solution that is 1.00 M HNO2 and 1.00 M NANO2
What is the silver ion concentration in a solution prepared by mixing 387 mL of 0.369 M silver nitrate with 421 mL of 0.564 M sodium phosphate? The Ksp of silver phosphate is 2.8* 10^18
How many grams of sodium lactate must be added to a 1.00L solution of .400M lactic acid to make a buffer with a pH of 3.7??
what Kelvin temperature will the vapor pressure be 3.00 times higher than it was at 329 K?
energy in amount of 433 j is added to a 80 g sample of water at temperature of 27 degrees celsius. what will be the
how many kilojoules of heat are absorbed when 7.20g of mgos is decomposed into mgs and o2 g at constant
Determine the temperature (in degrees Celsius) above which the reaction is non-spontaneous under standard conditions.
The plane reaches take-off speed in 30.1 seconds. What is the aircraft's take-off speed in mph?
consider 4.50 of a gas at 365 and 20. if the container is compressed to 2.90 and the temperature is increased to 35
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