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A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL. If s = 0.40 is a good approximation of lower case sigma, how many replicate determinations should be made for the mean for the analysis of a sample to be within: a. 0.3 mg/dL of the mean 95% of the time b. 0.2 mg/dL of the mean 95% of the time
A sample of ammonia gas is completely decomposed to nitrogen andhydrogen gases over heated iron wool. If the total pressure is 603mmHg, calculate the partial pressure of N2 and H2
Make educated guesses at the pictures for the LGO's for tetrahedral and octahedral. Propose the appropiate pictures for the LGO's symmetry labels for the square pyramidal Cr(CO)5. With your pictures, can you justify the energy levels for the bondi..
How many moles of Oxygen are in an "empty" two-liter cola bottle at atmospheric pressure (1atm) at room tempertature (25 degrees celsius) assume ideal behavior
Use the half reaction method to balance the following equation in acidic solution. It is not necessary to include any phases of matter for any species. It is not necessary to include any phases of matter for any species.
You are given a small piece of gold colored material and want to determine if it is actually gold. Using the Archimedes' Principle, you find that the volume is 0.40 cm3 and the mass is 6.0 g. What conclusions can you reach from your simple density..
Calculate the percentage of He atoms at 100oC which have speeds in the range between 1200 m/s and 1300 m/s. Calculate the percentage of these He atoms that have speeds greater than 5000 m/s
Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.32 mol/L. (Assume T = 25°C.)
Given an equation and an enthalpy change, how much heat is involved when a certain amount of an element
what is the chemical equation that describes both these reactions? Please give the chemical equations of what happens in this situation
The balanced equation for trans-1,2-dibenzoylethylene in ethanol to give the product cis-1,2-dibenzoylethylene
How much faster do ammonia (NH3) molecules effuse than carbon monoxide (CO) molecules? RATE OF NH3 effusion/rate of CO efusion
Naturally occurring gallium consists of two isotopes. One of those isotopes is 71Ga with an isotopic mass of 70.9247050 amu and an abundance of 39.892%. What is the mass number of the other isotope
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