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Determine the mass of cupric sulfate penthahydrate needed to make 250mL of an aqueous 0.5 molar solution
For the reaction:2CH4(g) C2H2(g) + 3H2(g) 0.115 mole of CH4 was placed in a 1.00 L container. At equilibrium it was found that the [C2H2] = 0.035 M. What is the value of the equilibrium constant?
5.000 mL of 0.01023 M KIO3 solution was additional to an excess of KI. How many millimoles of triiodide (I3-) is formed
A buffer contains 0.40M base, B, and 0.25M of its conjugate acid, BH+, and has a pH = 8.88. What is the pH after 0.0020mol of HCl is added to 0.25L of this solution?
An open end manometer constructed from a U-shaped tube was operated using an oil which has a density of 1.088 g ml-1. In a particular measurement, the level in the end connected to the gas manifold, on which the experiment was being conducted,
Making plastic drinking bottles for bottled water requires about 58 million barrels of oils per year (2007). In 2007, 300 million people averaged 114 L of bottled water per person. The average cost of 0.6 L was $1.00. The average charge for tap wa..
a proton in a linear accelerator has a de broglie wavelength of 144 rm pm. what is the speed of the
Is the conversion of pyruvate ion to lactate ion in the reaction CH3COCO2-(aq) +NADH(aq) + H+(aq) CH3CH(OH)CO2-(aq) + NAD+(aq) a redox reaction
The ka of acetic acid is 1.8 x 10^-5. Please show the calculations for the preparation of 100 mL of an acetic acid - sodium acetate pH 5.0 buffer using .10 M acetic acid.
When a 8.37-g mixture of methane, CH4, and ethane, C2H6, is burned in oxygen at constant pressure, 445.8 kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture
write a plausible equation to interpret, at the atomic level, what you observed in the reaction of lysol toilet bowl cleaner with .1M AgNo3
Why do you require to acidify (add concentration hydrochloric acid) to the reaction mixture previous to crystallization (Preparation on benzoic acid use oxidation)
If the entropy of a collection of molecules in 50,000 boxes is 3.73E-20 J/K, how many molecules are there
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