smpanic smpanic

10-06-2020
Chemistry

contestada

4. If 175 undecayed nuclei remain from a sample of 2800 nuclei, how many half-
lives have passed? (Show your work.) *
Your answer

Respuesta :

jeracoo jeracoo

10-06-2020

Answer:

X = 4

Explanation:

Start 2800

End 175

175 = 2800x(0.5)^X

175/2800 = 0.5^X

0.0625 = 0.5^X

log(0.5 x) = log(0.0625)

x · log(0.5) = log(0.0625)

-0.301x = -1.204

x = -1.204/-0.301

x = 4

Answer Link

Otras preguntas

each month for 6 months,kelsey completes 5 paintings. How many more paintings does she need to complete before she has completed 38 paintings?

How do you find the slope of a line?

What are the two basic types of fat?

2.75+.003+.158= 4.36

What journalist called attention to the living conditions of tenement-dwellers?

when focusing on low power, which knob is used to get a clear image

Solve the equation. 3x – 6 = 6x – 9 Please show step by step

which of the following lists demonstrates various tense of an irregular verb a) i go,i went, i will go b)i call,i called ,i will call c) i try,i tried ,i will c

Vanessa buys a strip of 25 postage stamps the stamps is 21 7/8 inches long how long is it after Vanessa uses on stamp

8. In which of the following countries are Shia Muslims the majority? A. Turkey B. Saudi Arabia C. Yemen D. Iran