Determine the numbers of grams of kh2bo3
Suppose you have 3.240 L of a 0.1737 M H3BO3 (boric acid, Ka=5.8000x10-10) solution. To convert this into a buffer having a pH of 9.1484, determine the numbers of grams of KH2BO3 (M.W. 99.926) should be added to the solution?
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The number of molecules in a rotational level J is given by NJ = C(2J+1)exp(-Θ rot J(J+1)/T ), where C is a constant, Identify the value of J of the most highly populated level (i.e. the value of J that makes NJ a maximum
After five minutes, absorbance at 403 nm has changed by 0.550. Molar absorbtivity (e) of product is 18.8x10^3 L/mol cm. Determine activity of the enzyme in U/L?
Determine the empirical formula ratio of a compound which is having the copper and sulfur given the following analytical results?
Choose a student at random from a large statistics class. Explain a sample space S for each of the following. (In some cases you may have some freedom in specifying S.)
The height in feet of the projectile with the initial velocity of 96 feet per second and the initial height of 75 feet is the function of time t in seconds provided by: h(t) = -16t2 + 96t + 75. Determine maximum height of projectile.
Determine the heat released when the 2.00L of Cl2(g) with a density of 1.88 g/L react with an excess of sodium metal at the 25degree Celsius and 1 atm to form sodium chloride.
Determine the final temperature in Kelvin when an electrical heater is used to supply 235.0 J of energy to a 25.0 g sample of water (specific heat is 4.18 J g-1 deg-1), originally at the 290.0 Kelvin.
Find vertex of graph of the quadratic function: f(x) = x2 + 4. Vertex is the optimum point. It is highest or lowest point of given function.
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