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Molodets [167]
3 years ago
5

What is represented at the triple point of water?

Chemistry
1 answer:
Aleks04 [339]3 years ago
8 0

Answer:D

Explanation: Solid, liquid, and gas phases in equilibrium

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It’s a nonet because an octet is 8, a quartet is 4, and a duet is 2.
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3 years ago
T. Svedberg measured the molecular weight of carbonyl hemoglobin by velocity centrifugation. In this experiment, 0.96 g of prote
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Answer:

The molecular weight is 77.7 kg/mol

Explanation:

The molecular mass of hemoglobin is equal to:

M=\frac{RTs}{D(1-Vp)}

Where

R = molar gas constant = 8.315 J/K mol

p = density = 0.998 g/mL

V = specific volume = 0.755 mL/g

s = sedimentation rate = ?

D = diffusion rate = 7x10⁻¹¹m²/s

T = temperature = 303 K

The sedimentation rate is equal to:

s=\frac{1}{w^{2}t } ln(\frac{x_{b,t} }{x_{b,0} } )

Where

w = angular velocity = 39300 rpm = 246929.18 rad/min

xb,30 = boundary midpoint distance at 30 min = 4.525 + 0.074 cm

t = time = 30 min

xb,0 = boundary midpoint distante at 0 min = 4.525 cm

s=\frac{1}{246929.18^{2}*30 } ln(\frac{4.525+0.074}{4.525} )=8.87x10^{-13} min=5.32x10^{-13} s

The molecular weight is:

M=\frac{8.315*303*5.32x10^{-13} }{7x10^{-11}*(1-(0.755*0.998)) } =77.7kg/mol

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What is the oxidation number of Fe in [Fe (CN)4]2-​
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Explanation:

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Can anyone answer this
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Answer:

d

Explanation:

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Hydrogen has three isotopes 1H, 2H, and 3H. What is the difference between these three isotopes?
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The main difference between the 3 isotopes of hydrogen are the number of neutrons in the nucleus. Hydrogen has no neutrons, Deuterium has one neutron, and tritium has two neutrons. All three have one proton and one electron.
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