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Calculate the Qsp for the mixing of 30.0mL of 3.7 × 10^-3 M Sr(NO3)2 and 25.0mL of 0.02 M Na2SO4
5mol of a mixture of CH4 and C2H6 requires exactly 358.4L of oxygen for complete combustion, determine the percentage of methane in the mixture (GMV =22.4,dm³ at s.t.p
Known H2CO3: = 4.30×10-7, = 5.61×10-11, the pH of 0.1mol·L-1 sodium bicarbonate solution is ?Which of these metals in the elemental state are stable (do not oxidise) in an aqueous solution at pH = 4.2 ? (3 marks)
Nickel: Ni2+ +2e- → Ni E0 = - 0.260 V
Copper Cu2+ + 2e- → Cu E0 = + 0.340 V
what is the geometry around each central atom in dimethyl fumarate
What's the polarity of Carbamylcholine?
Aluminum oxide, Al2O3(s), forms a thin coating on an aluminum surface, such as the body of an airplane, when aluminum is exposed to oxygen in air.This coating helps to reduce further corrosion of the aluminum. Suppose that a sample contains 2.6 mol of aluminum oxide.
a. How many formula units are in the sample? b. How many atoms, in total, are in the sample?
c. How many aluminum atoms are in the sample?
What's the polarity of Carbamylcholine?
What's the formal charge of the central atoms in Carbamylcholine?
what is the geometry around each central atom in Carbamylcholine
