1 mole tungsten ------------- 6.02 x 10²³ atoms
0.0845 moles ---------------- ( atoms tungsten )
atoms tungsten = 0.0845 x ( 6.02 x 10²³) / 1
atoms tungsten = 5.08 x 10²² / 1
= 5.08 x 10²² atoms of tungsten
hope this helps!
Answer: The molar mass of water in the hydrate is 126.14.
Explanation:
The volume (in mL) of methylergonovine the nurse should draw up in the syringeis is 0.25 mL
<h3>What is density? </h3>
The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as
Density = mass / volume
With the concept of density, we can obtain the volume of methylergonovine. Details below
<h3>How to determine the volume </h3>
The following data were obtained from the question:
- Mass = 0.2 mg
- Density = 0.8 mg/mL
- Volume =?
Density = mass / volume
Cross multiply
Density × volume = mass
Divide both sides by density
Volume = mass / density
Volume = 0.2 / 0.8
Volume = 0.25 mL
Learn more about density:
brainly.com/question/952755
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Answer:it’s C
Explanation:
A distant luminous object travels rapidly away from an observer.
