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(a) Give the empirical formula and structural formula for a cyclic ether containing four carbon atoms in the ring.
(b) Write the structural formula for a straight-chain compound that is a structural isomer of your answer to part (a).
What's the central atom for CH3Br, how many bonds are formed, is it polar or nonpolar, what's the direction of electronegativity
Calculate delta E for the combustion of a gas that releases 195.0 kJ of energy to its surroundings and does 54.5 kJ of work on its surroundings.
in a titration of hcl i have a molarity of 0.991 naoh and a volume of 7.6 ml to reach an equivalence point for the
At 20 Celsius, a saturated solution of NaCl in water has a concentration of 380 g of sodium chloride per liter of solution. How many g of NaCl are required to make 4 L of the saturated solution? Which is the solute and which is the solvent in this..
What are the frequency and energy of a photon with a wavelength of 900 nm. Report your answers to three significant digits.
If a 4.86g of solid carbon dioxide was placed into an evacuated 2 L container, sealed, and then heated until it completely changed to a gas with a final temperature of 75 degrees calcium, what would be the pressure?
When a 8.26-g sample of gaseous hydrogen bromide dissolves in 36.2 g of water in a coffee-cup calorimeter the temperature rises from 25.00C to 82.14C. Calculate H in kJ/mol HBr for the solution process.
It is possible to write four resonance structures for the azide ion, N3-, all of which satisfy the octet rule (write them all). However, experiential evidence shows that the azide ion has linear shape, with equal nitrogen-nitrogen distances
copper crystallizes in a face-centered cubic lattice. if the density of metallic copper is 8.96 gcm3 what is the radius
Aluminum reacts with oxygen gas in a combination reaction to produce aluminum oxide. How many moles of oxygen gas are needed to react with 1.64 moles of aluminum
Use the following reaction to find out how many grams of H2O you need to react with 5.67*10^-2 moles of Li2O Li2O + H2O ---------> 2LiOH
How can you tell when looking at organic compounds what is saturated? Here are some examples?
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