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What is the pH of a solution having a [OH]- concentration of 1.0 * 10^-10
A 224mL sample of an aqueous solution contains 2.80% MgCl2 by mass. Exactly one-half of the magnesium ions are Mg?28, a beta emitter with a half-life of 21 hours
The excited state atom drops down to the n=3 state. What is the wavelength of the emitted photon. what kind of electromagnetic radiation is this
We will consider climate, weather, ocean circulation and variations in solar radiation. For starters, let's consider the Earth's rotational axis.
What will exactly happen if we use a fluid of low density in manometer than the measuring fluid?
Calculate the Gibbs energy,entropy, and enthalpy of mixing when 1 mole C6H14(hexane) is mixed wth 1 mol C7
Write out the mechanism for the synthesis of 2-iodobenzoic acid from 2-aminobenzoic acid: 2-aminobenzoic acid + NaNO2 + 2HCl --> 2-iodobenzoic acid
A patient took some tablets containing magnesium oxide to relieve his gastric pain, which was caused by excess hydrochloric acid. Each tablet contains 3.0g of magnesium oxide. How many tablets should he take to relieve the pain?
A mixture of 3.0 g of 1,1-diphenylethylene and 100 mg of sulfuric acid was heated for 2 hours. Upon cooling, 2.2 grams of crystalline 1,1,3,3-tetraphenyl-3-methyl-1-butene precipitated from the mixture. What is the percent yield of the crystalline..
a sample of sodium reacts completely with 0.142kg of chlorine forming 234g of sodium chloride. what mass of sodium
Write the formulas of the conjugate base for each of the following acids: A. HCO3- B. CH3--NH3+ C. HPO4^2- D. HNO4- E. HClO2
what is the band gap energy in kilojoules per mole if bule diamonds absorb orange light with a wavelength of 675nm
Explain what types of chemical compounds describe Trimyristin and its soaps. Explain what happens to the Trimyristin if ethyl ether is evaporated rapidly (>60deg. C)
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