The table shows the amount of radioactive element remaining in a sample over a period of time.
Radioactive Decay Rate
Amount of Radioactive Sample
(grams) Time (years)
45.0 0
31.8 11
22.5 22
15.9 33
11.3 44
Part 1: What is the half-life of the element? Explain how you determined this.
Part 2: How long would it take 308 g of the sample to decay to 4.8125 grams? Show your work or explain your answer.
Answers: 3
Chemistry, 21.06.2019 18:50
Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.
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Chemistry, 21.06.2019 23:50
How will the emission of an alpha particle affect the atomic number of an atom
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Chemistry, 22.06.2019 03:50
Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
The table shows the amount of radioactive element remaining in a sample over a period of time.
Radi...
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