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If the recommended daily allowance of 1669 mg of potassium is supplied as potassium chloride, how many grams of potassium chloride should be consumed daily? (Report your answer to the nearest 0.1 g)
what is the molality of a solution of 10g benzophenone and 1mL of cyclohexanone
State the balanced molecular, complete ionic and net ionic equations for each of the following acid-base reactions
At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time?
What is the difference between a hypothesis and a theory? a hypothesis is a proposal that has been tested extensively, whereas a theory is an initialy stated proposal a hypothesis is a conclusion made after a theory was tested words hypothesis
what are the principal causes for the differences in conductances of isomolar solutions of kno3 hno3 cano32 and
Problem- The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
A sparingly soluble salt gets precipitated only when the product of concentration of its ions in the solution (Qsp) becomes greater than its solubility product. If the solubility of BaSO4 in water is 8 × 10-4 mol dm-3, calculate its solubility in ..
A particular reactant decomposes with a half-life of 145 s when its initial concentration is 0.329 M. The same reactant decomposes with a half-life of 213 s when its initial concentration is 0.224 M. What is the value and unit of the rate constant..
A single crystal of silver with critical resolved shear stress of 80 MPa is oriented such that tension is applied along a [121] direction. What applied stress will cause failure and along which slip systems
Describe the process that will result in the greatest amount of work done by the system with a constant external pressure and calculate w. What is the least amount of work done with no restrictions on the external pressure
What is the effect on the boiling point of a solution (e.g., water) produced by a soluble nonvolatile substance (e.g., sodium chloride)? What is the effect of an insoluble substance such as sand or charcoal?
If a student performs an end other mic reaction in a calorimeter, explain how does the calculated value of delta H differ from the actual value if the heat exchanged with the calorimeter isn't taken into account
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