sorry i just wasnt born for chemistry but i know this is easy:
4.to two decimal places, what is the relative atomic mass and the molar mass of the lement potassium, K?
2007-03-07 19:18:27 · 5 answers · asked by Whisper G 1 in Science & Mathematics ➔ Chemistry
Check the periodic table.
In this case both are the same, as K can present itself both as a pure element and an ion. But since electrons don't have enough mass, if you take one off from the original K°, the atomic mass won't change in the first two decimal places.
So, the answer for both is 39.09>> 39.10 g/mol or amu.
2007-03-07 20:19:22 · answer #1 · answered by ZZZzzzZZZzzz 2 · 1⤊ 0⤋
Hi! Are you a chemistry student? Anyhow.
Name: Potassium
Symbol: K
Atomic Number: 19
Atomic Mass: 39.0983 amu
Melting Point: 63.65 °C (336.8 K, 146.57 °F)
Boiling Point: 774.0 °C (1047.15 K, 1425.2 °F)
Number of Protons/Electrons: 19
Number of Neutrons: 20
Classification: Alkali Metal
Crystal Structure: Cubic
Density @ 293 K: 0.862 g/cm3
Color: silvery
Hope the answer to the question.
Take care Bye.
2007-03-07 19:31:37 · answer #2 · answered by Anonymous · 1⤊ 0⤋
39.10 : atomic mass
39.10:molar mass of K
2007-03-07 19:27:50 · answer #3 · answered by lastdemocratalive 2 · 1⤊ 0⤋
well, it's written on every periodic table.
it's 39.10 for both, already corrected for natural isotopic distribution.
2007-03-07 20:50:59 · answer #4 · answered by scientific_boy3434 5 · 0⤊ 0⤋
Thats EASY?????????
2007-03-07 19:26:36 · answer #5 · answered by VodkaKween 2 · 1⤊ 0⤋