<span>Answer:
Ground state of Hydrogen = -13.6 eV Energy of photon emission: E = hf = hc/λ = 6.6256E-34 (3E8)/680E-9 E = 0.0292E-17 J(1 eV/1.6E-19 J) = 1.825 eV E(photon) = 1.825 eV Bandgap energy: ΔE = E – Eo = 1.825 – (-13.6) = 15.425 eV</span>
Answer:
Birds
Explanation:
Some types of birds eat seeds do they use there beaks to easily crack through the seeds
Answer:
solo I
Explanation:
Según esta teoría para que se produzca una reacción deben cumplirse tres condiciones: Las moléculas de los reactivos tienen que chocar entre sí. Estos choques deben de producirse con energía suficiente de forma que se puedan romper y formar enlaces químicos.
Soda ash which is also referred to as sodium carbonate with a chemical formula (NaCO3) has the following chemical formula
The melting point of 851 degrees
The molecular weight of 105.98
Its density at 25 degrees is =2.53 g/cm^3
Its specific heat capacity at 25 degrees = 0.249 cal/gm/ 0c
<u>Answer:</u> The mass of chlorine gas is 4.54 grams.
<u>Explanation:</u>
To calculate the mass of the gas, we use the equation given by ideal gas equation:
Or,
where,
P = pressure of the gas = 98.7 kPa
V = Volume of gas = 3.34 L
m = given mass of chlorine gas = ?
M = Molar mass of chlorine gas = 35.45 g/mol
R = Gas constant =
T = Temperature of the gas =
Putting values in above equation, we get:
Hence, the mass of chlorine gas is 4.54 grams.