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A gaseous mixture of and contains 35.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 585 ?
A solution of acid is titrated with NaOH. Give the net ionic equation for this reaction. 2. Determine the pH for the following solutions, and identify them as acidic, basic, or neutral.
Look up the chemical structure of ibuprofen. Do you think it inhibits the inflammation cascade in the same way as aspirin? Why or why not?
Calculate the heat of enthalpy for the reaction: PCl5(g) → PCl3(g) + Cl2(g)
Consider the reaction: 2 K(s) + 2 H2O(l) -> 2 KOH(aq) + H2(g), DH = ? The heat released when 24.9g of K reacts with excess water is 124 kJ. Determine the enthalpy change, DH, for the above equation as written
A trayed column is used to recover acrylic acid and acetic acid from a dilute gas stream by absorption in water. At the same vapor concentration, acrylic acid is about two times as soluble as acetic acid in water
Plan and Design Lab: To Determine the water of crystallization in hydrated copper (2) sulphate. Hence determine the formula CuSO4.xH2O.
What is the pH of a solution resulting from the addition of 11.9 mL of 0.20 M HCl to 50.0 mL of 0.12 M NH3? Assume the volumes are additive. Kb of NH3 = 1.8 10-5.
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
What is the molar concentration of sodium hydroxide solution if a titration involved 0.0058 mole NaOH and 31.87 ml of sodium hydroxide.
what is the molarity of a saturated solution of AgOH with a Ksp = 2.0 x 10^ -8
What is the sum of all the coefficients in the balanced equation?
What is the value of Keq for the reaction 4 HCl(g) + O2(g) reverse reaction arrow 2 Cl2(g) + 2 H2O(g)?
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