Good idea!maybe I should try that
For electricity to flow there must be a flow of electrons or ions present in a system or medium. When electricity is passed in pure water, oxygen does not have d-orbitals or f-orbitals through which electrons may pass. In pure water there are no electrolytic substance, so no ions present in the pure water. Therefore electricity can not pass through pure water. Additionally; water cannot dissociate into OH- and H+ when electricity is passed through pure water.
Answer:
The mass number (A) of an atom is the total number of protons and neutrons in its nucleus. ... Because electrons have virtually no mass, just about all the mass of an atom is in its protons and neutrons. Therefore, the total number of protons and neutrons in an atom determines its mass in atomic mass units (Table 4.5. 1).
Answer:
709415.584 g
Explanation:
This is a heat capacity problem. We use the formula below to calculate.
Q=mcΔT
where Q is the quantity of heat
m is the mass of substance
ΔT is the change in temperature of substance( T2-T1).
Q= 9.5MJ = 9.5*10^(6}J
C.P = 30.8J/(K.mol)
temperature of sodium increases by 10°C which means our final temperature in kelvin T2 will be 510K
initial temperature T1= 500K
m= Q/[c (T2-T1)]
m= 9.5*10^(6}/ {30.8(510-500)]
m= 30844.156 mol of Na
Converting to grams we multiply by the molar mass of Na.
molar mass of Na = 23
mass of Na= 30844.156 *23
=709415.584 g
