Answer:
Choose three different light levels, and place four identical plants under each light level to observe the light’s effect on multiple plants.
Explanation:
Answer:
5.9405*10^14 Hz
Explanation:
Remember the equation c=v*λ
v=frequency
λ=wavelength
By manipulating the equation, we can get it in terms of frequency:
c/λ=v
Now convert wavelength to meters (1nm=m*10^-9)
5.05*10^-7m (2 decimal places were shifted to make the number between 1-10, hence the -7 exponent)
Use the manipulated equation:
(3.00*10^8)/(5.05*10^-7), which yields:
5.9405*10^14 Hz (or s^-1)
Carbon 14 because it has an approximate half life of 5000 years.
Answer:
The answer to your question is: pH = 13.97
Explanation:
Data
NaOH = 21.5 g
Volume = 500 ml
pH = ?
Formula
Molarity = moles / volume (l)
pOH = -log [OH⁺]
pH = 14 - pOH
Moles of NaOH
MM NaOH = 23 + 16 + 1
= 40 g
40 g of NaOH ----------------- 1 mol
21.5 g of NaOH -------------- x
x = 0.538 moles
Molarity = 0.538/ 0.5
= 1.075 M
pOH = -log [1.075]
pOH = 0.0318
pH = 14 - 0.0318
pH = 13.97
