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Classify each of the following as a compound, a homogeneous mixture, or a heterogeneous mixture. (a) wax (c) air (d) gasoline (e) iron(II) sulfide
At this point in the titration the system reches equilibrium and therefore Qsp for silver chromate is equal to Ksp of silver chromate and Qsp for silver chloride is equal to Ksp for AgCl. 1. Cal the equilibrium concentration for the chromate ion [C..
determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate
Consider the reaction: 2H3PO4=P2O5+3H20 Using the information below calculate the average rate of formation of P2O5 between 10.0 and 40.0 seconds.
If 141 mL of wet H2 is collected over water at 24°C and a ba?rometric pressure of 738 torr, how many grams of Zn have been consumed.
dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.133 g sample was studied by combustion analysis, 0.239 g of CO2 and 0.0323 g of H2O formed. How many moles of eac..
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
how many liters of NO gas can be produced at STP from 80.0 mL of a 4.00 M HNO3 solution and 10.0 g of Cu? 3Cu(s) + 8HNO3(aq) > 3Cu(NO3)2(aq) + 4H2O(l) + 2NO(g)
Aluminum has chemical propertied that are similar to magnesium. What observation might you expect with the addition of 6M HCl to an aluminum strip
Using the same sample of gas ( = 275 , = 43 ), we wish to change the pressure to 2750 with no accompanying change in volume or amount of gas.
Find the maximum possible thermal efficiency and minimum possible rate of heat discard. If the actual efficiency is 60% of the maximum and the river has a flowrate of 165 m 3 /s, what is the expected temperature rise of the river
Tungsten is usually produced by the reduction of WO3 with hydrojen as shown by the equation; WO3(s) + 3 H2(g) ? W (s) + 3 H2O (g) The enthalpy for the reaction,(delta H rxn ) ?H°rxn is + 114.5 kj. The entropy for the reaction (Delta S rxn) ?S°rxn i..
Calculate the root mean square velocities of Cl2(g) and O2(g) molecules at 263 K and 505 K.
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