Answer:
d. Electrons would be ejected and they would have greater kinetic energy than those ejected by yellow light.
Explanation:
A formula that describes the kinetic energy of an electron ejected when a surface is truck by light is:
- Ephoton = KineticEnergyElectron + Φ
As you see, the higher the energy of the photon striking the surface, the higher the kinetic energy of the ejected electron.
<em>Ultraviolet light has more energy than yellow light</em>, so it would cause<em> the ejected electron to have greater kinetic energy as well</em>.
Answer:
We assume you are converting between moles NaOH and gram. You can view more details on each measurement unit: molecular weight of NaOH or grams This compound is also known as Sodium Hydroxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NaOH, or 39.99711 grams.
Explanation:
Answer:
it has a bitter taste .
it does not produce hydroxide in the solution.
it does not feel slippery
1 atm = 760 mmHg
912 mmHg * (1 atm/760 mmHg) = 1.2 atm
We are limited to 3 significant digits from 912 mmHg, so your final answer will be 1.20 atm.
Answer:
Q = 2.60 • J
Explanation:
Our specific heat capacity equation is:
Q = mC∆T
Q is the energy in joules.
m is the mass of the substance.
∆T is the temperature chance.
Let's plug in what we know.
- We have 76.0 g of octane
- The specific heat capacity of octane is 2.22 J/(g•K)
- The temperature increases from 10.6º to 26.0º (a 15.4º increase)
Q = 76.0(2.22)(15.4)
Multiply.
Q = 2598.288
We want three significant figures.
Q = 2.60 •
or
Q = 2590 J
Hope this helps!