List the elements and the amounts of each element below for 5 Li2S04.

Chemistry

1 answer:

GREYUIT [131]3 years ago

7 0

Answer:

Lithium has 5 elements, sulphur has 2 elements and oxygen has 4 elements

You might be interested in

Iodine-131, t1/2 = 8.0 days, is used in the diagnosis and treatment of thyroid gland diseases. If a laboratory sample of iodine-

SashulF [63]

Answer:

32,0 days.

Explanation:

The radioactive decay follows:

$N_{t} = N_{0}e^{\frac{-0.693t}{t_{1/2}}$

Where Nt is the concentration in a time t (6,22x10¹⁷), N₀ is the initial concentration (9,95x10¹⁸) Half life time is 8,0 days and t is the time it take to drop this concentration. Replacing:

$6.22x10^{17} = 9,95x10^{18}e^{\frac{-0.693t}{8 days}$

$0,0625 = e^{\frac{-0.693t}{8days}$

$ln 0,0625 = {\frac{-0.693t}{8days}$

$-2,77*8days = -0.693t$

$-22,2days = -0.693t$

$32,0days = t$

It take 32,0 days

I hope it helps!

7 0

3 years ago

The geometry is called pentagonal bipyramidal. This has a lot of similarities to a 6-coordinate molecule except there are 5 doma

Studentka2010 [4]

Solution :

A pentagonal bipyramidal is a bond structure where the bond angle that surrounds an atom is not identical. Different bond angles are different. It has one central atom having seven ligands at the corners of the pentagonal bipyramidal.

a). The shape of the molecule that have 7 bonding domains is called the pentagonal bipyramidal. For example take the case of $IF_7$ .

The structure of the molecule is attached below.

b). The bond angles that can be possible between all the adjacent atoms are 72 degrees and 90 degrees.

c). The lone pair is represented by E and the 6 bonding domains, the geometry is the pentagonal pyramidal, that is in the case of $\text{XeOF}^-$ .

d). With two lone pairs, which is represented by E and as many as 5 bonding domains, the geometry is described as pentagonal planar. For example, $\text{XeF}^-_5$