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Programming Essentials - Designing for Reusability
Discuss the concept of reusability and how to design for reusability. Provide an example with your posting.
75-150 Words
What is the pH of a solution that results from mixing together equal volumes of a 0.110 M solution of acetic acid and a 0.0550 M solution of sodium hydroxide
How many liters of O2 gas measured at 861 torr and 250.0°C are formed by the decomposition of 200. g of KClO. (You will need a balanced equation where KClO is the reactant. The other product is KCl.)
What mass of glucose (C6H12O6 ; 180.2 g/mol) is needed to prepare 2.25 L of a solution that has the same osmotic pressure as blood at 37 °C ? (R = 0.08206 L·atm/mol·K)
How many milliliters of water must be added to a stock solution of 6.00 M HNO3 in order to prepare 500 mL of 0.200 M HNO3 by dilution.
Presume that the chlorine molecule can be treated as a harmonic oscillator with a force constant of k=329 Nm-1 and utilized the reduced mass for the mass of the oscillator. The mass of a35Cl atom is 34.9688 u and 36.9670 u for37Cl.
Question- 1. Could aqueous ammonia be used instead of hot water to separate lead ion from the mixed chloride precipitate? Explain.
We use Use the De Broglie wavelength formula, ohr radius definition and wave-particle duality equation to compute the wavelength of,
Question- In an esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditions to from an ester. Draw the structure of the ester product in the reaction between pentanoic acid and 1-propanol.
A sample of 1-naphthoic acid is contaminated with a small amount of sand and NaCl. Using active extraction (changing the polarity) and a gravity filtration to remove a component, describe how you would obtain pure naphthoic acid from this mixture.
Question- If 2.00 grame of HEPES and 2.70 grams of HEPES-H+ are mixed and diluted to a final volume of 1.00L, what is the pH of the resulting buffer
in a titration experiment it was found that 15.38ml of 0.139m naoh was required to neutralize a 25.00 ml sample of hcl.
Discuss the behavior of tungsten trioxide (or molybdenum trioxide) and product(s)
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