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Problem- A graph of natural log of counts per minute vs elapsed time (in minutes) for a radioactive sample produced a straight line plot with a slope of -0.301 min^-1. What is the half-life of this sample?
Anyone can tell me how to solve it step by step so that I will be able to understand what is going on?
You are given a 76.0% solution of sulfuric acid, H2SO4. What is the molality of this solution. The density of the H2SO4 solution is 1.278 g/mL.
A polyamide was prepared by bulk polymerization of hexamethylene diamine (9.22 g) with adipic acid (11.68 g) at 280 degrees C. Analysis of the whole reaction product showed that it contained 2.6 x 10-3 mol of carboxylic acid groups.
A volume of 10.0 mL of a .00300 M solution of Cl- ions are reacted with .500 M solution of AgNO3-. What is the maximum mass of AgCl that precipitates in grams.
gold can be hammered into extremely thin sheets called gold leaf. if a 211-mg piece of gold density 19.32 gcm3 is
Imagine two solutions with the same concentration as well as the same boiling point, however one has ethanol as the solvent and the other has carbon tetrachloride as the solvent. Find out that concentration and boiling point.
a voltaic cell is constructed with two zn2-zn electrodes. the two cell compartments have zn25.00 m and zn21.00 x 10-2 m
Suppose you analyze a sample of fertilizer by the procedure of this experiment and obtain 1.000g of MgNH4PO4 * 6H20. Calculate the equivalent mass of P2O5 initially in the sample.
Calculate the concentration of HY3- in a solution prepared by mixing 10.00mL of .010M VOSO4, 9.9mL of .010M EDTA and 10.00mL of buffer with a ph of 4.00
Depict structural formulas that indicate the geometry of the following complexes. Define If the geometric or optical isomers are possible include them and label each form.
the molar heat of vaporization of acetic acid hc2h3o2 is 24.3 kj mol-1 at its boiling point. how many kilojoules of
the compounds magnesium oxide (MgO) and calcium sulfide (CaS) is 82.1% by mass calcium sulfide . The compound calcium sulfide is 55.6% by mass calcium. Calculate the mass (g) of calcium in the mixture.
question if an ideal gas initially at 1.2 bar and 1.5 l is compressed at constant temperature to a volume of 0.6 l what
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