# chemistry

posted by .

does the half life formula t=ln2/k give sec as unit or min as unit

• chemistry -

It depends upon what the half life is measured in. If the half life is 3.54 sec then k is in sec^-1. If half life is 4.5 min, then k is in min^-1. You may be asking the other way around (what unit for half life if k .....) but I think you gt the idea.

## Similar Questions

1. ### math/unit rate

please help me find the definition for unit rate. It depends upon what kind of unit. Go to www.google.com and type in unit rate. There is one source there for hotel unit rates, another for unit rates for the medical field, etc. You …
2. ### Physics

the volume of a cuboid is the product of its length, breadth, and height. give a possible metric unit for the volume. is the unit for volume a basic unit or a derived unit?
3. ### Chemistry

Gallium65, a radioactive isotope of gallium, decays by first order-kinetics. The half-life of this isotope is 15.2 min. How long would it take for 7/8 of a sample of this isotope to decay?
4. ### Chemistry

IF 80mg of a radioactive element decays to 10mg in 30 minutes, the half-life of this element is a.10 min b.20 min c.30 min d.40 min the answer is a.10 min but i would like to know why, please help.
5. ### Chemistry AP HELP!

Tausonite, a mineral composed of Sr, O, and Ti, has the cubic unit cell and the chemical formula is SrTiO3..... Ti is coordinated by 6 O atoms, because the Ti is located at the center of the unit cell. To see the full coordination …
6. ### Math

A rectangle has parameter of 24 unit, if width is 4 unit what is length. 10 unit 6 unit 16 unit 8 units My answer is 16 unit.. I wan a make sure if I am right.
7. ### chemistry

A particular radioactive substance has a half-life of 4 minutes. How long will it take for 250 g of this radioactive material to decay to less than 0.1g?
8. ### Chemistry

Determine the number of particles in this sample. Identify the unit as a formula unit or a molecule. 58 g of chromium (III) sulfate.
9. ### Chemistry

Calculate one Al(OH)3 formula unit in grams/unit. I keep arriving at the answer of 1.295 x 10-22 g/unit but my homework says it is incorrect! SOMEONE please help!!!
10. ### Math 1 question plz help asap

Write an equivalent time using only the smallest unit. 3hrs 14 min A. 74 min B. 166 min C. 180 min D. 194 min I would give u an answer but I don't understand what the question means im asking if you could help me plz

More Similar Questions