Answer: Y is Hydrogen.
Explanation: Based on the valence electrons, X and Y are Group 1 Elements and Y is a Halogen. Based on the differences between X and Y and the similarities between Y and Z, we can say that Y is Hydrogen, the only nonmetal with 1 valence electron. This is based on the fact that it has typical nonmetal characteristics: low melting and boiling points.
Answer:
If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, ... If I contain 3.0 moles of gas in a container with a volume of 60. liters and at a ... Mixtures of helium and oxygen are used in scuba diving tanks to help prevent ... volume of 5.00 Lat 25.0C. Calculate the partial pressure of each gas and the ...
Explanation:
Answer:
1.0 × 10⁻⁵ mol/L
Explanation:
The concentration of a gas (C) in a liquid depends on its partial pressure (P), as expressed in Henry's law.
C = k × P
where,
k is the henry's law constant
When the partial pressure of the gas equilibrates at 3.0 × 10⁻⁴ atm, its concentration in the liquid is:
C = k × P
C = 3.4 × 10⁻² mol/L.atm × 3.0 × 10⁻⁴ atm
C = 1.0 × 10⁻⁵ mol/L
The number of protons in the nucleus for that element