Ask a New Question

an original sample of K-40 has a mass of 25.00 grams. After 3.9x 10 to the ninth years, 3.125 grams of the original sample remains unchanged. What is the half-life ok K-40 in minutes?

Is it 6.8328 x 10 to the 14th

1 answer

Yes but you are allowed only 2 significant figures so you should round to 6.8E14 min.

Ask a New Question or answer this question.

Similar Questions

1.How many atoms are in a sample of copper with a mass of 18.46 grams?2.How many formula units are in a sample of salt with a
1. 1 answer
1.How many atoms are in a sample of copper with a mass of 18.46 grams?2.How many formula units are in a sample of salt with a
1. 1 answer
1. Carbon Dioxide gas has a mass of 86.3 grams. If the molar mass of the sample is 44.2 grams, how many moles of CO2 are present
1. 6 answers
Calculate the mass in grams of the undiluted bleach that was in the sample of bleach titrated.Given: Density of undiluted bleach
1. 1 answer

more similar questions