<span>175.5g
</span>Cl(35.5) x 3 = 106.5
Na(23) x 3 = 69
106.5 + 69 = 175.5g
or
0g because sodium and chlorine are not chemically bonded.
Given parameters:
duration of fall = 6s
Unknown:
Speed of the rock before it hits the ground = ?
Solution:
To solve this problem, we apply one of the appropriate motion equations;
V = u + gt
Where V is the final velocity
u is the initial velocity
t is the time taken
g is the acceleration due to gravity = 9.8m/s²
The initial velocity is 0;
So;
V = gt
Input the parameters and solve for V;
V = 9.8 x 6 = 58.8m/s
The velocity before hitting the ground is 58.8m/s
Answer:The dissociation constant of a weak acid is 4.9 ~ 10-8 , its percentage ionization at 0.1 M is ( a ) ... The pH of a 0.1 M aqueous solution of a weak acid ( HA ) is 3.
Explanation:acid. Ka acetic acid = 1.8χ10–5. (b) A buffer solution is prepared by adding 0.10 liter of 2.0 ... Compute the hydrogen ion concentration of the buffer solution.
Answer:
a
The condensed structural formula for methane is
b
The condensed structural formula for ethane is
c
The condensed structural formula for pentane is
d
The diagram for the structural formula for cyclopropane is shown on the first uploaded image
Explanation: