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Calculate the number of moles of oxygen gas produced from the completely catalyzed decomposition of 6.20 mL sample of a 3.5% solution of H2O2. The density of the 3.5% solution of H2O2 is 1.01 g/mL.
If internal ph of muscle is 6.8 what is the HPO4 2-/H2PO4 - ratio in this cell? The values are pk1= 2.12, pK2= 7.21, and PK3= 12.32 for phosphoric acid, H3PO4. Please give detailed explanation how to solve problem
In order to produce 10000.0 kJ of energy, how many grams of oxygen must react?
If 1020C of charge is passed through a solution of AgNO3(aq), calculate the number of moles of silver deposited.
A mole of carbon atoms has a mass of 12 grams, and a mole of magnesium atoms, 24 grams. What is the mass ratio of a single carbon atom to a single magnesium atom?
What is an Electric Drive? Why It is Needed? Why Electrical Drives are needed? Block Diagram of an AC Electric Drive
Calculate the amounts of Cu AND Br2 produced in 1.0 h at inert electrodes in a solution of CuBr2 by a current of 4.50 A. MW (Cu) = 63.55 g/mol /MW (Br2) = 160 g/mol & n = 2 mol e-
78 mL of 2.5 M phosphoric acid is neutralized with 500 mL of potassium hydroxide. What is the concentration of the base?
what is the molar mass of a gas which has a density of 1.16g.l-1. at stp ? if this gas is a hydrocarbon with 92.2carbon
Give the conjugate base of the subsequent Bronsted-Lowry acids- Express as chemical formulas separated by a comma. 1. HCl, H2SO4 2. CN?, CH3NH2
A common mineral in earth's crust has the chemical composition 45.51% Cu, 20312% Si, and 24.37 O, by mass. Explain what is its empirical formula
Suppose that the reaction X+Y==> Z has a rate law=k[X][Y] a.What is the overall order of the reaction? b.What is the order with respect to X?To Y?
Problem- 1) How many kilograms of sulfur dioxide (a major source of acid rain) are produced from the burning of the coal in question 1, if the coal is 0.90% by mass sulfur
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