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When 98g of sulfuric acid are dissolved in 2100 ml of solution. Calculate the concentration in % and the molarity.
If 20 moles G2 (random element) are reacted with 10 moles B2 (random element) , how many moles of G2B will be formed
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution.
25.00 mL of a solution containing 0.1263 M Br- is titrated with 0.1000 M Ag(NO3). Determine pAg and pBr (a) 5.00 ml prior to the equivalence point (b) at the equivalence point (c) 5.00 mL past the equivalence point.
What is the reciprocal of the linear dispersion. Could the two emission lines of hydrogen, 656.28 nm and 656.10 nm be resolved to the base line with a slit width of 0.010mm. Note that the blaze angle is given in wavelength. Using the balze angle f..
Consider the following ions: NH^4+, CO3^2-,Br^-,S^2-,ClO4^- A. Which of these ions in water gives an acidic solution B. Which of these ions will have no effect on the pH of an aqueous solution C. Which ion is the strongest base
Draw the structure of the compound that is consistent with the 1H NMR data below. (Assume that long-range coupling is not observed.)
I want you to find a media report that attempts to raise alarm or fear about a chemical or some use of a chemical. It can be from a newspaper, magazine, website, blog, advertisement, or any other ‘published' source.
The rate constant of the reaction A ? B + C is 2.75 x 10-7 s-1 at a certain temperature. The initial [A] is 2.19 M. How many days would pass before A had decomposed to the extent that 0.601 M of A remained?
Problem- A rectangle of length 5.42 in., height 3.47 cm, and depth 309 mm has a mass of 147.2 ounces. What is the density of the material in grams per centimeters
After the nuclei of gas B2 have been excited, a time much larger than the lifetime of the excited state is allowed to elapse, and then diffusion takes place. Calculate the entropy change of the universe.
A compound is composed of only C and H. It contains 88.82% C by mass and has a molar mass of 54.09 g/mol. What is the correct molecular formula
By how much must an enzyme reduce the activation energy of a reaction at 37°C in order for the reaction to occur 100 times faster than in the absence of the enzyme?
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