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serg [7]
3 years ago
6

For every 1.0 mole of glycine in the sample, how many molecules of methionine are present? (for help performing calculations wit

h numbers expressed in scientific notation, try this exercise.)
Chemistry
1 answer:
krok68 [10]3 years ago
3 0

1.08 X 10^21 molecules

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A gaseous mixture at 265K and 1.0 atm contains 25 O2 60 N2 and 15 CO2 mole basis The velocities of the components are 0.084 cm s
Free_Kalibri [48]

Answer:

The molar average velocity is 0.0588 cm/s

The N₂ diffusion velocity relative to the mole average velocity is -0.1428 cm/s

The molar diffusional flux of N₂ is -3.9x10⁻³

Explanation:

Given data:

T = temperature = 265 K

O₂ = 25%

N₂ = 60%

CO₂ = 15%

vO₂ = -0.084 cm/s

vN₂ = 0.12 cm/s

vCO₂ = 0.052 cm/s

The molar average velocity is equal:

v_{av} =(0.25*(-0.084))+(0.6*0.12)+(0.15*0.052)=0.0588cm/s

The N₂ diffusion velocity relative to the molar average velocity is:

v_{i} -v_{av} =-0.084-0.0588=-0.1428cm/s

The molar diffusional flux of N₂ is:

N_{N_{2} } =\frac{P}{RT} y_{A} (v_{i} -v_{av} )=-3.9x10^{-3}

8 0
4 years ago
Why would a scientist method of data collection change based on where they conduct their experiment?
serious [3.7K]

Answer: scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis.

Explanation:

When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.

8 0
3 years ago
6. Matter with a definite volume but no definite shape is a<br> A gas<br> B. solid<br> C.liquid
Nonamiya [84]

Answer:

Liquid

Explanation:

3 0
3 years ago
Which of the following examples illustrates a number that is correctly rounded to three significant figures? Which of the follow
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Answer:

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Explanation:

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3 years ago
According to their locations on the Periodic Table, argon (Ar) and neon (Ne) are
a_sh-v [17]
Your answer would be (D), Noble Gases, or Inert Gases - The far right on the periodic table is also known as Group(0)., or Group 18 on the periodic table. Elements in this group includes, Neon(NE), Argon(AR), Krypton(KR), Xenon(XE), and Radon(RN).





Hope that helps!!!
3 0
3 years ago
Read 2 more answers
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