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How many grams of oxygen are required to completely burn 5.90 g of C3H8 in the following unbalanced equation:C3H8(g) + O2(g) --> CO2(g) + H2O(g)?
options:
5.90 g
21.4 g
4.28 g
10.7 g
29.5 g
When 0.450kJ of heat is added to the gas, it expands and does 219J of work on the surroundings. What is the value of \Delta H for this process? Answer in units of kJ
The indicator propyl red has Ka = 3.3 × 10-6. What would be the approximate pH range over which it would change color?
what effect does the presence of sodium sulfite group on methyl orange have on the solubility of methyl orange in water. If this group were absent, would you expect the solubility of the resulting molecule to be more or less soluble in hexane than..
The container is then cooled to 22.5 degrees C. One now finds that the gas pressure inside the container is 0.871atm. What mass of mercury(II) oxide was originally placed into the container
identify the oxidizing agent in the reaction Mg+2HCl=H2+MgCl2, the generation of hydrogen gas in the laboratory.
How long (in hours) would this current have to be applied to plate out 8.90 g of nickel?
A 4.00 g sample of the metal nitrate M(NO3)2, in which M is an unknown metal was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that is formed in the reaction weighed 3.318 g. Determine the identity of the meta..
What would happen if you increase the pH of this acidic solution by addition of a strong base such as KOH? b.) Write the balanced equation for the reaction (a.) and identify both the stronger acid and base and the weaker acid and base.
calculate the volume in mililiters (mL) of 6 M NaOH needed to make 500 mL of a 0.100 molar (M) NaOH solution.
A student added more KSCN solution that instructed when making standard solution. assuming no other errors were made in the experiment
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
Show how you would synthesize ethyl 2-benzyl-3-phenylpropenoate from benzaldehyde, ethyl acetate and benzyl bromide
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