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Terephthalic acid is a significant chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 19.81 mg terephthalic acid produces 41.98 mgCO2 as well as 6.45 mg H2O. If 0.315 mol of terephthalic acid has a mass of52.3 g find out the molecular formula for terphthalic acid.
A pharmaceutical company needs to prepare a batch of 5000 bottles containing 80 tablets each with 325 mg of aspirin per tablet. How many kilograms of salicylic acid are needed to produce the needed aspirin
Based on the results below, what is the charge of the electron in zorgs ()? Drop # Charge A ?5.1×10?9 B ?1.0×10?8 C ?6.8×10?9 D ?1.36×10?8
What is the absorbance of solution B if it was prepared by taking 50 mL of solution A and diluting it to the mark in a 250 mL volumetric flask
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution. 25 mL of this solution titrated with 30 mL of NaOH.
Wpump = 1500 kJ/h = 0.42 kW Qboil = 2.59 x 106 kJ/h = 718.7 kW Wturb = -227,300 kJ/h = -63.1 kW Qcond = -2.36 x 106 kJ/h = -656 kW What is the efficiency of the engine? How should we define it?
Calculate the equilibrium partial pressures of Cl2, H2O, HCl, and O2. Peq(Cl2) = . Peq(H2O) = . Peq(HCl) = . Peq(O2) = . (b) Calculate KP for this reaction.
What product or products would you expect to obtain by the addition of bromine to cis-cinnamic acid, assuming that it reacts by the same mechanism as the trans acid
suppose a can contains gas at a pressure of 755 mm hg and a temperature of 25 degrees celsius what would be the
An aqueous solution containing 35.8 g of an unknown molecular (nonelectrolyte) compound in 156.7g of water was found to have a freezing point of -1.4 degrees C. Calculate the molar mass of the unknown compound.
If a temperature increase from 21.0 C to 36.0 C triples the rate constant for a reaction, what is the value of the activation barrier for the reaction
What is the specific heat constant if 621 g of Metal A raises the temperature of water by 3.20°C and releases 1.20 kJ of heat
what volume of nitrogen is is formed at 742 torr and 28.7dgree c by reacting 2.78 cm^3 of cu is density 8.95 g/cm^3 with 246ml of nitric acid ( 1.42g/cm^3) 68 %HNo3 by mass. Cu(s) + 4HNO3(aq)-------CU(NO3)2aq + 2NO2(g) + 2H2O(l). What is volume fo..
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