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Milk of Magnesia is a suspension of magnesium hydroxide in water. A common medicine, it is often used as an antacid because it neutralizes hydrochloric acid in the stomach:
Mg(OH)2(s) + 2 HCl(aq) → Mg2 + (aq) + 2 H2O(l)
Calculate the mass of HCl that is neutralized by 2 g of Mg(OH)2(s)
The first step in industrial nitric acid production is the catalyzed oxidation of ammonia. Without a catalyst, a different reaction predominates: 4NH3(g) + 3O2(g) ? 2N2(g) + 6H2O(g) When 0.0280 mol gaseous NH3 and 0.0250 mol gaseous O2 are placed ..
In a gas mixture, the partial pressures are nitrogen 435 , oxygen 145 , and helium 240 . What is the total pressure ( torr) exerted by the gas mixture?
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following.
A H atom emitts a photon with a wavelength of 4.34 × 102 nm. If the energy of the initial state of the H atom was -8.72 × 10(-20) J, calculate the energy of the final state. Express answer in scientific notation.
compare the purity/identity of the samples from the extraction with the purity of the samples obtained from column chromatography.
Explain how a detergent removes oil from a cloth when laundry is done. Include micelles in your discussion. You may use drawings to aid your explanation.
If the initial concentration of AB is 0.210M , and the reaction mixture initially contains no products, what are the concentrations of A and B after 80s ?
Explain how the calculated formula of the hydrate would be changed if water from the air is absorbed by the hot dry sample as it cools.
What is the net redox reaction that occurs when Cu comes into contact with acidic K2Cr2O7? (b) What is the E cell for the reaction
Suppose that 50.0 mL of a 0.0500 M solution of Pb(NO3)2 is mixed with 40.0 mL of a 0.200 M solution of NaIO3 at 25°C. Calculate the [Pb2+] and [IO3-] when the mixture comes to equilibrium. At this temperature, Ksp for Pb(IO3)2 is 2.6x10^-13.
cortisol m 362.47 gmol one of the major steroid hormones is a key factor in the synthesis of protein. its profound
a sample of nitrogren gas is collected in a 100 ml container at a pressure of 688 mm hg and a temperature of 565
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