Explain how many days are required for a sample decay

Assignment Help Chemistry

Reference no: EM13492039

For the decay of 226 Ac by all processes combined, the first-order rate constant is k = 0.556 d^- 1. How many days are required for 76.0% of a sample of 226 Ac to decay? equation to use is ln(n/no)=-kt

Reference no: EM13492039

Questions Cloud

Prepare the equity section of the balance sheet : Prepare journal entries to record the transactions affecting equity during the period, Prepare a statement showing the changes in retained earnings during the year

Calculate the pressure amplitude in pascals of the sound : A point source of source emits a tone with a power of 45 W that has a frequency of 429 Hz. calculate the pressure amplitude in Pascals of the sound

Determine the initial kinetic energy of the system : A 31.0 kg child runs with a speed of 3.00 m/s tangential to the rim of a stationary merry-go-round. Calculate the initial kinetic energy of the system

Effect on the financial performance of the organisation : Not having an accounting background, the owner Joe Logs, does not understand the concept of depreciation and is under the impression that depreciation is a process of creating a cash fund to replace an asset.

Explain how many days are required for a sample decay : For the decay of 226 Ac by all processes combined, the first-order rate constant is k = 0.556 d^- 1. How many days are required for 76.0% of a sample of 226 Ac to decay? equation to use is ln(n/no)=-kt

What is the waters temperature after a half hour : At rest a person has a metabolic rate of 4.2 x 10^5 J/hr. The person is submerged neck-deep into a tub containing 1.0 x 10^3 kg water at 27.00 degrees Celcius. what is the water's temperature after a half hour

Identifying the internal control weakness : Write a memo to the company Chairperson identifying the internal Control weakness in this situation. State the steps to be taken to correct the weakness.

What is the stores degree of operating leverage : How many pairs of stockings must be sold to break even? What does this represent in total dollar sales?

Calculate the free cash flow for cellular access for : Keeping the other assumptions that underlie Table 7.1 the same, recalculate unlevered net income (that is, reproduce Table 7.1 under the new assumptions, and note that we are ignoring cannibalization and lost rent).

User Account

All Pages