Use PV =nRT. Rearrange it to n = PV/RT.
P = 202.6 kPa
V = 4.0L
R = 8.314 kPa*L/mol*K
T = 127 °C + 273 = 400 K
Plug it in and solve. I got 0.24 moles of H2.
Answer:
<em>atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.</em>
Explanation:
<h3>brainlist please</h3>
A resting heart rate is usually around 40 beats per minute (Thats the normal amount)
Explanation:
HCl(aq)+ NaOH(aq)→NaCl(aq)+H2O(l) ..
