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A significant contribution to atmospheric Carbon dioxide levels comes from the thermal decomposition of limestone in the manufacture of cement and of lime for agricultural purposes.
Cement works roast 1000 million tonnes of limestone per year and a further 200 million tonnnes is roasted in kilns to make lime.
What is the total annual mass output of carbon dioxide (in million tonnes) from these two processes?
If a coordination compound absorbs in the visible region of the electromagnetic spectrum. Determined that a 0.0378M solution of this compound in a 3.41 cm cuvette has an absorbance maximum of 0.871 at 575 nm. Compute the molar absorbtivity of the ..
0.50g of Cu 2+ is dissolved in 4.0ml of 16 M HNO3. how much 3.0 M NaOH must be added to precipitate the Cu 2+ as Cu(OH)2
Calculate the volume of a sample of carbon monoxide at -60.6°C and 801 torr if it occupies 29.4 L at 372 K and 189 torr.
Delivered mechanical power is 98.8kW. Temperature as well as velocity are T1= 300K, T2= 520K, U1= 10m/s and U2=3.5m/s. Approximate the rate of heat transfer from compressor. Presume air that Cp=7/2R as well as that enthalpy is independence of pres..
The heat of formation of MnO is -385 kj/mol and that of Al2O3 is -1670 kj/mol. What is the heat of the reaction in kj
consider the given case as first anionsnbsp will not precipitate in the presence of agno3 and second anions get
Draw the mechanism of the diel-alder reaction of 1,3-butadiene with maleic anhydride. Does the product have
uncle wilbur let me watch as he analyzed the iron content of runoff from his banana ranch. a 25.0-ml sample was
In acidic solution Fe3+ a weak oxidizing agent can oxidize iodide ion to iodine, I2 by conversion to Fe2+ without interference from bromide or other ions. State a balanced equation for this oxidation-reduction reaction
If the molar solubility of Cd3(PO4)2 at 25 oC is 1.19e-07 mol/L, what is the Ksp of Cd3(PO4)2 at this temperature
A compound consists of H, C, and O. Combustion of 0.225 grams sample of this compound produces 0.512 grams carbon dioxide and 0.209 grams water. Analysis of this acid indicated a molar mass of 116 g/mole. What is the empirical and molecular formul..
HSO4^-(aq) + H2O(l) H3O^+ (aq) + SO4^2- (aq) Ka for aqueous dissociation of HSO4- is 1.2*10^-2 What is the pH of a sol containing equal concentrations of SO4^2- and HSO4^-
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