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College Chemistry Questions
College Chemistry Questions
Assuming that Ka is 1.85 *10-5 for acetic acid, calculate the pH at one-half the equivalence point and at the equivalence point for titration of 50mL of 0.100M acetic acid with 0.100M NaOH
What is the approximate pH of a solution labeled 6 x 10^-5 M HBr
I balanced the equation: HBr(aq) +NH3(aq)->NH4Br I need to find the ionic equation and the net ionic equation
How many grams of steam and iron must react to produce 375g of magnetic iron oxide, Fe3So4
What is the pH of the following solutions
Complete the following table for aqueous solutions of caffeine, C8H10O2N4
a)What is the mass of heavy water D2O produced when 5.20g of O2 reacts with excess D2
When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed
Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 6.0×10^-2
How much heat (in kJ) is evolved in converting 1.00 mol of steam at 130.0 C to ice at -50.0 C
what is the approximate pH of a solution labeled 0.050 M HClO
Calculate the vapor pressure of a solution of 0.39 mol of cholesterol in 5.4 mol of toluene at 32oC
How many milliliters of 0.100 M HNO3 are needed to neutralize the following solutions
How many total moles of ions are released when the following sample dissolves completely in water: 5.15x10^-3 g Ca(NO3)2
A bag contains a mixture of copper and lead BBs
The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance
H2C=C=CH2 molecule is linear, what are they hybridization states of the carbon atoms
A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100
Predict the signs of delta H (Enthalpy) and delta S (Entropy) for the evaporation of water at 85 C
Calculate the molar concentration of acetic acid (CHcCOOH) in the vineagar sample using the average volume of NaOH
calculate the pressure exerted by 2.50 moles of CO2 confined in a volume of 5.00 L at 450K
What is thhe pH of 500mL of solution containing 0.0124 grams of Ca(OH)2
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -0.4 C
Which of the following ions possess a dipole moment: ClF2+, ClF2-, IF2+, or IF4-
Please identify the net ionic equation for Na3PO4 +ZnSO4=Zn3(PO4)2+ Na2SO4
To dilute a solution from 0.600 M to 0.100 M, the final volume must be A
Sulfur trioxide is made from the reaction of sulfur dioxide and oxygen
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