Carbon-14 has a half-life of 5730 years if you start with a 2.37 g sample how much would remain after 17,190 years? Manganese-56 is a beta emitter with a half-life of 2.6 hours. What is the mass of manganese-56 in a 500 mg sample at the end of 10.4 hours?

A sample of thorium-234 has a half life of 24.1 days. Is that sample is allowed to decay for 96.4 days and 4.67 grams remains, what was the original mass of the samples?

Please show work!!

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution