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A mixture of gas with a total pressure =760mmHg having each of the given gases(CO2, Ar, O2)at the indicated partial pressures: Ar, 224mmHg; CO2, 133mmHg ; and O2 , 180mmHg . This mixture also contains He (helium gas). determine the partial pressure of the He gas?
60.0 mL portion of of 1.70 M solution is diluted to a volume of 288 mili litres. A 144-mili litres portion of that solution is diluted using 115 mLili litres of H2O. Determine the final concentration.
Determine the value of the solubility-product constant if solubility of T3U2 =4.24× 10-20 mol/L.?
When C2H5OH +3O2 produces 2CO2 + 3H2O,determine how many grams of oxygen gas are essential for complete combustion of 421grams of ethanol ?
An electron traveling at the velocity of 3.7 105 m/sec has an uncertainty in its velocity of 2.34 105 m/s. determine the uncertainty in its position?
Explain what health risks may arise people use this hot water in the preparation and cooking and what is the equilibrium constant for this reaction
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
Write a balanced nuclear equation for the alpha decay of each of the following radioactive isotopes.
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding.
using a sample of river water sample analyzed for total inorganic carbon ,The river pH= 7.1 and an inorganic C concentration of 6.97 mg C/L.c
Determine the molecular formula of the compound with molar mass 336.5g mol-1 and empirical formula C 5 H 8 O?
What is the molar mass of this substance, express your answer in g/mol and determine the moloar concentraitions Cr 2 O 7 ^2 and of K + ?
Total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N 2 O 5 vapor Enter the total pressure in kPa 10 minutes after initiation of the reaction.
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