Compare them accordingly with the formula of E=hc/wavelength
Use Law of Graham.
rate A / rate B = √ (molar mass B / molar mass A)
rate A / rate B = 2.5
molar mass A = 32.0 g/mol
=> (molar mass B / molar mass A) = (rate A / rate B)^2
molar mass B = molar mass A * (rate A / rate B)^2
molar mass B = 32.0 g/mol * (2.5)^2 = 200. g/mol
Answer: 200 g/mol
Answer:
Isotopes are given by the name of the element and the mass number. ... We are given that boron-10 had five protons in its nucleus, and any element always has the same number of protons in its nucleus (atomic number). So boron-11 has five protons the same as boron-10
1) between calcium cations (Ca²⁺) and chloride anions (Cl⁻) and water, there is ion-dipole attractions. <span>An ion-dipole force is an attractive force that results from the electrostatic attraction between an ion (Ca</span>²⁺ and Cl⁻)<span> and a neutral molecule that has a dipole (H</span>₂O).
2) between ethanol (CH₃CH₂OH) and water, there is hydrogen bonding, because both molecules have oxygen and hydrogen.