0.164 g/L is the density of a sample of 1.00 mole of at 793mmhg and -9.00 degrees celcius.
<h3>What is density?</h3>
Density is the mass of a unit volume of a material substance. The formula for density is d = , where d is density, M is mass, and V is volume.
Given data:
n = 1.00 mole
P=793 mm hg =1.04342 atm
T=-9.00 degree celcius = -9.00 + 273= 264 K
V=?
Using Ideal Gas Law equation:
PV = n R T
R = gas constant = 0.082057 L-atm/(mol-K)
(1.04342 atm)(V) = 5 X 0.082057 L-atm/(mol-K) X 264 K
V = 103.67 Liters
Now calculate density:
Mole weight of = 1.00 mole
So, the mass of = 17.031 g
Density =
Density =
= 0.164 g/L
Hence, 0.164 g/L is the density of a sample of 1.00 mole of at 793mmhg and -9.00 degrees celcius.
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Coordination number is the number of ligands either neutral or anionic surrounding the Metal atom in complex.
Here Coordination number is 5, means five NH₃ are attached to Ni atom.
[Ni (NH₃)₅]
The charge on sphere is the charge carried by Ni atom which is +2.
So,
[Ni (NH₃)₅]⁺²
Pentaamine Nickle (II) Ion
I believe the answer is E 85 %
You should have learned the question
m(in g) = n (mole) * M(molar mass)
You need to find the mass of glucose, which the mole of the glucose is given and now you find the molar mass of the glucose which is looking up on a period table and find the average mass of each element and multiple by its number of atom in glucose
M = 12.01 g/mol *6 (for Carbon) + 16.00 g/mol * 6(for oxygen) + 1.01 g/mol *12(for hydrogen)
M = 180.18 g/mol (number may differ a little bit depends on the average mass given on the period table that you have)
Now sub the M=180.18 into the equation m=n*M
m = 1.3 mol * 180.18 g/mol
m = 234.234 g
The mass of glucose is 234.234g and the mass of the mixture is 276g
Simply take the mass of glucose and divide by the mass of the mixture, then multiply by 100
234.234g / 276g = 0.84867
0.84867 * 100 = 84.867%
84.867% ~ 85%
Hope this help!
P.S. I believe this is how you do this question, but I’m not a expert at chemistry, the answer could be wrong. I’m really sorry if it is wrong
Your skeletal system consists of all the 206 bones and the 360 joints in the human body. This includes the cells, protein fibers and minerals that make up your bones.