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Suppose that in an attempt tp minimize waste a laboratory teaching assistant decided to give each student only 1 ml of each liquid to use to measure density in an experiment;
Estimate the magnitude of the absolute error nad percent error in the measured sample volumes compare those errors to the erors that occur when measuring volumes of approimatley 8 ml as normally done in this experiment. Assume that the graduated cylinder used to measure al of the volumes has a 0.1 ml graduations.
then
Based on you answer you you be more or less confident about your density measurement if you used the smaller sample volume rahter than the normal 8-ml sample volume? Briefly explain
Iodine-131 decays to produce xenon-131. Which type of nuclear radiation is emitted in this reaction
rate of reaction for 8h2s 4o2 -gt 8h2o s8 if started with 21.35g of h2s and 15.36g of o2. what is the limiting
There is a solution which includes [H+]=0.3M, [Fe+2]=0.05M and [Pb+2]=0.05M and that this solution is saturated with H2S (means you take value [H2S]= 0.1M)
If 32 mL of 6.8 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid ?
name the four general types of carbonyl reactions. give an example of each including a detailed mechaism. use a propyl group next to a carbonyl in each example.
How would you prepare 1.000 L of a 1.000 mole L?1, pH 7.50 Tris-aka, tris(hydroxymethyl)aminomethane-buffer? You have pure Tris?HCl, {(HOCH2)3NH+,Cl?}
The original amounts for the reagents with 0.5g of starting material (4-cyclohexene...) was 5mL water, 0.2g decolorizing carbon. 1.5mL of 1M sodium borohydride, 0.5mL of 5%chloroplatinic acid, and 2mL concentrated HCl.
What are the experimental conditions of T and P that willbe used to calculated the mass of air in the flask? b) Calculate the density of air at the experimental conditiosnidentified in part a. c) Calculate the mass of air in the flask before the liqu..
If 3.25ml of vinegar needs 40.0 of 0.130M NaOh to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.30qt sample of this vinegar.
Carbon dioxide is removed from the atmosphere of space capsules by reaction with a solid metal hydroxide. Theproducts are water and the metal carbonate
an ice cube tray holds 455 g water. if the water initially has a temperature of 33degc how many kilojoules of heat must
You have samples of two different compounds, CH3OCH3 and CH3CH2CHO. which ONE of these tests can be used to distinguish between the pair of compounds shown above. 1. heptane/water solubility 2. dilute HCl 3. H2CrO4 4. NaHCO3 solution 5. Br2 in CH3..
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