Answer:
The greater the frequency means the more energy transferred.
The greater the wavelength means the less energy transferred
Answer:
The molar mass is 138.8843 g/mol
Missing question: <span>A 5.00 L sample of O2 at a given temperature and pressure contains a 1.08x10^23 molecules. How many molecules would be contained in each of the following at the same temperature and pressure? </span>
a) 5.00 L H2.
<span>b) 5.00 L CO2.
Use </span>Avogadro's Law: The Volume Amount Law: <span>equal </span>volumes<span> of all gases, at the same temperature and pressure, have the same </span>number<span> of molecules. Because hydrogen and carbon(IV) oxide are gases, number of molecules are the same as number of oxygen molecules, so:
a) N(H</span>₂) = 1.08·10²³.
b) N(CO₂) = 1.08·10²³
Answer:

Explanation:
Hello there!
In this case, since the STP conditions are defined by 1 atm (101.3 kPa) and 273 K, it is possible for us to use the combined gas law for this problem as we are given variable pressure, temperature and volume:

In such a way, solving for V2 as the final volume, we obtain:

Regards!
Answer: The mass of 405 mL of ethylene glycol is 444.3 g.
Explanation:
Density is defined as the mass contained per unit volume.
Given :
Density of the ethylene glycol=
Volume of the ethylene glycol=
= 0.405 L (1L=1000ml)
Mass of the ethylene glycol = ?
Putting in the values we get:
Thus the mass of 405 mL of ethylene glycol is 444.3 g