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Methyl red is a common acid-base indicator. It has a Ka equal to 6.310-6. Its undissociated form is red and its anionic form is yellow. What color would a methyl red solution have at pH = 7.0 ? Show your calculations. Hint: Determine the concentration ratio of methyl red and its conjugate.
at constant volume, the initial pressure of a substance is 0.63 atm and the initial temperature is 283 k.calculate the pressure of the substance at 295 k.
How are the opposing pathways of glycolysis and gluconeogenesis prevented from extensive
The formal charge on the P atom is zero and It is best described with three resonance structures.
Im really confused about spectroscopy and need an introduction on what it is and what these types of problems mean.
how many grams of KO2 are needed to produce 180.0 L of O2 at 18.0 C and 1.00 atm
A physiological saline solution contains 154mEq/L each of Na+ and Cl-. How many moles each of Na+ and Cl- are in 0.600L of the saline solution?
Explain how a calibration curve could be used to determine an unknown quantity
Would it be a good idea for a person to take a couple of aspirin tablets before attending a cocktail party? Explain your reasoning. This needs to be from a chemistry stand point.
Calculate the heat evolved from a mixture of 14.6 L of sulfur dioxide at 1 atm and 294 K and 15 g of oxygen if the following reaction occurs: 2 SO2(g) + O2(g) ?? 2 SO3(g) ?H? = ?198 kJ
A chemical reaction takes place in a container of cross-sectional area 100 cm2. As a result of the reaction, a piston is pushed out through 21 cm against an external pressure of 534 torr.
A solution contains 0.021 M Cl? and 0.017 M I?. A solution containing copper (I) ions is added to selectively precipitate one of the ions. At what concentration of copper (I) ion will a precipitate begin to form? What is the identity of t..
A mixture of MgCO3 and MgCO3·3H2O has a mass of 3.057 g. After heating to drive off all the water the mass is 2.790 g. What is the mass percent of MgCO3·3H2O in the mixture.
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