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It takes 11.2 kJ of energy to raise the temperature of 145 g of benzene from 25.0°C to 70.0°C. What is the specificheat of benzene?
What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3?
Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information: 2 C(s) + H2(g) C2H2(g) H = +226.8 kJ CO2(g) C(s) + O2(g) H = +393.5 kJ 2 C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(l) H = -2599.3 kJ H = kJ
Acid catalyzed hydration of 3-hexene gives only one alcohol with the molecular formula C6H14O. A) Draw the structure of 3-hexene.
Draw the basic repeating unit of polyethylene terephthalate (PET). Classify PET as a polyamide or polyester. Is PET a condensation or addition polymer? Explain.
A solution containing 100 g of an unknown liquid and 900 g water has a freezing point of - 3.33 oC. What is the molar mass of the liquid? Kf = 1.86oC/m
Explain the rate constant for the first order decomposition of a compound A in the reaction 2A = P is Kr= 3.56 * 10-7 S-1 at 25 C. Explain what is the half life of A. Explain what will be the pressure initially 33.0 kPa at (a) 50 s (b) 20 min afte..
State a chemical equation for the synthesis of ethyl 2-methylpropanoate. Utilize structural formulas including all the CH3, CH2, etc. details for each organic compound in your equation. Also, name each reactant.
Use atomic properties to explain why xenon is 11 times as soluble as helium in water at 0 degrees celsius.
The reaction that you will conduct in this experiment is known as a "haloform" reaction. When a methyl ketone is used as a substrate, what is it converted to in this reaction?
calculate the quantities of reagents needed to prepare 1.0 l ofdisodium arginine-sodium arginine buffer solution at a
How do you know when enough sodium sulfate has been added to a combination of organic extracts
A sample of aluminum metal absorbs 9.86J of heat,upon which the temperature of the sample increases from 23.2 C to 39.5 C. SInce the specific heat capacity of aluminum is 0.90 J/g-K, the mass of the sample is what in grams
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