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The specific heat of ethylene glycol is 2.42 J/g-K. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 degrees celsius to 40.5 degrees celsius?
A sample in a 1.0 mm cell absorbs 75.0% of the incident light at 510 nm. If the solution is 0.075 M, its molar absorptivity (M-1 cm-1) is:
Why don't we observe the deBroglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? The wavelength is too small relative to the size of macroscopic objects to be observed.
How many moles of O2 are needed to burn 1.05 mol of C8H18
considering the given equationnbsp in whichnbsp 4p45s8 yields 4p4s10 then determine nbspthe maximum amount of
draw 1-fluoropentane and predict the number of hydrogens per signal in a H-NMR spectra, and the splitting for each signal?
water can react with an acid or a base to produce two different products. draw the structure of each and label products
The density of a particular solid is 5.81 g/cm3 at 25°C. What is its density in kilograms per cubic meter (kg/m3)
A freshly prepared sample of curium-243 undergoes 3312 disintegrations per second. After 6.00 years, the activity of the sample declines to 2755 disintegrations per second. Calculate the half-life of curium-243. half-life
fundamentals of acids and bases.1. water self ionizes to a small extent creating equal concentrations of hydronium and
The recovered CuSO4•5H2O was then heated for 20 minutes at 120°C. The mass of the new hydrate was 2.17g. (The molar mass of H2O = 18.015 g/mol, and the molar mass of CuSO4= 159.61g/mol) Calculate the mass of CuSO4 in the new hydrate (CuSO4•XH2O).
The gasoline combines with 340.0 kg of oxygen. What is the total combined mass of the carbon dioxide and water produced by combustion in the engine?
Of the four biological classes of compounds that we've studied, in which one is hydrogen bonding not important
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