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In general chemistry you learned thatoxidation meant any reaction which involves loss of electrons, butin organic chemistry oxidation often refers to an earlier, moreliteral, definition of the term
This is a question from my chemistry homework. For a, i'm notsure how to get the 10% part. For b I don't really understandnormality but i think that 0.1N = 0.1 M?
When 10.0g of water at 100.0 oC isadded to 100.0g of water at 10.0oCin a calorimeter, the final temperature is 18.0oC. Calculate the heat capacity of the calorimeter. Specific heat of water is 4.18
Separation techniques were performed on a sample containing only sand and salt. The mass of the initial sample was 10.50 g. After the separation, 4.70 g of sand and 5.15 g of salt were recovered. W
A carbon-hydrogen-nitrogen-oxygen compound has a molecularmass of 116.12 u. In a combustion analysis, a 2.464 g sample yields3.735 g CO2 and 1.530 g H2O.
Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M Hbr solution after the following additions of acid: 0 mL 15.00 mL 29.00 mL 29.90 mL 30.00 mL 30.10 mL 40.00 mL
If 2.15 g of an unknown solid nonelectrplyte is dissolved in18.1 g of naphthalene, the resulting solution is found experimentally to freeze 4.3 C lower than pure naphthalene.
Lauryl alcohol is obtained from coconut oil and is used to make detergents. A solution of 5.00 g of lauryl alcohol in 0.100 kg of benzene freezes at 4.1 degrees C. What is the approx. molar mass of
How much energy in (kJ) must be removed in order to change 1.75 moles of water at 46.0 oC to ice at -24.0 oC in a process that takes place a constant pressure of 1.0atm.
A flask of water is connected to a vacuum pump. A fewmoments after the pump is turned on, the water begins to boil.Then, a few minutes later, the water begins to freeze. Explain what happened.
When rubidium metal is exposed to air, one Rb atom is combined with two oxygen atoms. If 1.75g of Rb is exposed to air, what is the mass of the product in grams?
Show that the quantum mechanical probability distributionapproaches the classical probability distribution as the energy of the particle approaches infinity fora fixed box length, L. Hint: it is mor
A particular brand of gasoline has a density of 0.737 g/mL at 25 degree C. How many grams of this gasoline would fill a 12.1 gal tank?
If 69.5kJ of heat is applied to a 1012g block of metal, the temperature of the metal increases by 11.4 degrees celcius. Calculate the specific heat capacity of the metal in J/g degrees celcius.
A solution of acetic acid is prepared in water by adding 11.1 g of sodium acetate to a volumetric flask and bringing the volume to 1.0 L with water. The final pH is measured to be 5.25. What are th
Cadmium telluride, CdTe, takes the zinc blende structure with aunit cell edge length of 6.49 Angstroms. There are 4 cadmium atomsand 4 tellurium atoms per unit cell.
How many grams of monosodium phosphate and disodium phosphate are needed to make 1L of 0.1M phosphate buffer at pH 7.4? The exact pKa for inorganic phosphate are 2.15, 6.82, and 12.38.
56g of metal carbonate, containing the unknown metal M, was heatedto give the metal oxide and CO2 according to thechemical equation below. The mass of CO2obtainedwas .376g. Determine the molar mass
The osmotic pressure of 180.0 mL solution of sucrose(C12H22O11) in ethanol at28.0°C is 1.85 atm. What is the molar concentration of the sucrose solution? Assume ideal behavior of the solution.
An organic compound (molar mass=97) is dissolved in water to form asolution with a density of 1.05 g/mL and a molarity of 2.09 M. What is the molality of the solution?
Why is H2SO4 the limiting reagent. i understand you divide 2by 3 multiplied by the number given but i just get that one number.How do you determine the limiting reagent by that specific number
A standard of Pb2+ for an analysis using atomic absorption isprepared by first dissolving 1.0390 g dried Pb(NO3)2 in distilledwater containing 1% nitric acid.
Glacier acetic acid and acetic anhydride is used for thepreparation of SnI4. These two compounds help SnI4 by creating awater free environment.
X-178 is a new drug developed by Pfizer that strongly inhibits theenzyme that causes migraines by binding to it with picomolar affinity. In a titrationcalorimeter you add a 0.2mM solution of X-178,
One mole of copper at a uniform temperature of 0°C is placed inthermal contact with a second mole of copper which, initially, isat a uniform temperature of 100°C.