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HF has an acid ionization constant Ka =3.5x10-4 State a chemical equation for this reaction corresponding to this Ka
Complete the following reaction, which took place in a separatory funnel, between diphenylamine dissolved in ether and excess 5% HCl.
using le chateliers principle to predict the effect of a change in conditions on a chemical equilibrium.nbsple
Acetylene, C2H2, will burn in the presence of oxygen. 2C2H2(g)+ 5O2(g) -> 4CO2(g)+ 2H2O(g) how many grams of water can be produced by the reaction of 2.40 mol of C2H2 with 7.4 mol of O2?
Which satisfy the octet rule and which do not? PS3, SO2, SO3, NO3-1, CO3-2, PCl5
if 12.5 g of ironiii oxide rust are pro- duced from 8.74 g of iron how much oxygen gas is needed for this
At 25 degrees celcius only 0.0900 mol of generic salt AB is soluble in 1.00L of water. What is the Ksp of the salt at 25 degrees celcius
an inert gas has a volume of 941 ml at temperature 28 oC and pressure 675 Torr. What volume does the gas occupy at standard ambient temperature and pressure (SATP)?
Which plot would not have a slope from which the indicated quantity for the reaction A ? Product(s) could be determined
Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture.( pKa1=1.30, pKa2=6.70.) Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.7 M H3PO3(aq) with 2.7 M KOH..
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
When 1 mol of glucose is burned, 2802.5 KJ of energy is released. Calculate the quantity of energy released to a person by eating 5.00g of glucose in a candy
If it took 8.54 mL of .150 M lead (ii) nitrate what is the mass of chloride in the ointment? What is the mass of Chloromycetin? What is the percent chloromycetin in the solution?
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