by isocratic HPLC. A solution was prepared by mixing 8.76 mg of Compound Y with 5.00 mL of unknown containing just Compound X, and diluting to 10.00 mL. Peak areas of 5.96 cm2 (Compound X) and 4.86 cm2 (Compound
A 10.0mL solution of 0.100 M Na2SO4 is added to a 20.0 mL water sample containing an unknown concentration of BaCl2 that was concentrated by 100 fold after being taken from a waste water treatment plant. After filtration of the solution, 0.5600g of the insoluble BaSO4 (s) is obtained. ...
ELECTRICAL CONDUCTIVITY, MOBILITY, AND CARRIER CONCENTRATION OF HOLEDEVIATION FROM STOICHIOMETRY IN CR2O3In lowest approximation, a certain chemical reaction is described by a system of first-order linear differential equations with unknown constant coefficients. One can therefore write down an expression...
Microplastics are an emerging threat and a big challenge for the environment. The presence of microplastics (MPs) in water is life-threatening to diverse organisms of aquatic ecosystems. Hence, the scientific community is exploring deeper to find treatment and removal options of MPs. Various physical...
wider use of RBM and a strengthened country-level role for the United Nations Resident Coordinator; for a strategic concentration of funds on MDGs and other selected key targets; and for a degree of focus on country programmes that is forcing UNESCO to ask searching questions about the right ...
asks his Japanese craftsmen to find a better solution. And it was that day that the art of kintsugi was born. Like many other Japanese arts it is an art that is extremely meticulous, delicate, rigorous, and requires a lot of preparation and concentration. But what is really wonderfu...
had significantly slower response times compared to those seated at the bench — which is actually a good thing. Slower response times indicate concentration, focus and engagement. They also made fewer errors and had less variation between their response times, indicating a consistent state of focus...
In a similar manner, when the concentration mode is used, the digital display may be expanded in order to achieve the desired units on the display. Remember that the base- line noise will also reflect the expansion applied. An inte- gration time (for example 5–10 secs) can be used in...
Here, N0 is the concentration of anions in the electrolyte, and ϵ is the dielectric constant in the device. Using Eq. (11), we implicitly assume that the dielectric constant is constant throughout the device. Furthermore, we neglect any effects due to migration of anions inside the ...
You work you work out the concentraion of H2O2the same no matter how diluted it is? Also, how much sulfuric acid would be enough to acidify H2O2? You don't calculate concentration of H2O2in the titrated solution. Instead, you calculate number of moles of H2O2titrated, and as you know vo...