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1) What is the mass of 38 molecules of SO3 in g?
2) What volume in L of chlorine at 30oC and 743 torr is required to react completely with 4.76 g aluminum:
2Al(s) + 3Cl2(g) → 2AlCl3(s)
Calculate the moles chlorine needed (as in the previous problem), then use the ideal gas law--PV = nRT. Additional help is given in the feedback.
Brass is a substitutional alloy consisting of a solution of copper and zinc. A particular sample of red brass consisting of 80.0%Cu and 20.0% Zn by mass has a density of 8780 k/m3. a)What is the molality of in the solid solution
If the rate increases by a factor of 10 as the temperature increases from 35 °C to 70°C, what is the activation energy for the reaction?
The active catalyst in this experiment was generated from the redox reaction of chloroplatinic acid with sodium borohydride. What is the active catalyst?
A vessel containing saturated vapor steam at 175 C is cooled to 40 C. The total mass of its contents is 450g. Determine the final volume of liquid water in the vessel.
How many grams of pure solid PbCl2 could be formed from the reaction of 5.176 g of lead with excess HCl?
100.0mL of 0.00100M Na2CO3 and 100.0mL of 0.00200M MgCl2 are mixed. Will a precipitate form. Justify your choice mathematically.
The combustion of ethanol, C2H6O (MW = 46.0 g/mol), produces CO2 (MW = 44.0 g/mol) and water (18.0 g/mol). In a lab experiment, the reaction occurs using 4.60 g of ethanol in a 1.00 L container at body temperature (310 K) and 0.970 atm according t..
a gaseous mixture consists of 80.0 mole percent n2 and 20.0 mole percent 02. suppose water is saturated with the gas
One of my titration-related topic and I'm finding for a mystery akali metal element which has compound formula of M2CO3. M, being the mystery one (it can be any of the akali metals). From my data and calculation, I obtained an amu value of 31 g/mol...
Question- The molar heats of fusion and vaporization of a certain substance are 2.48 kJ/mol and 8.51 kJ/mol, and its melting point and boiling point are -181 degrees Celsius and -130 degrees Celsius, respectively. Calculate the entropy changes for..
Question- Write the complete mechanism for the reaction of 1-methylcyclopentene with water in the presence of an acid catalyst.
in a coffee-cup calorimeter 1.80 g of nh4no3 is mixed with 75.0 g of water at an initial temperature of 25.00degc.
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