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gulaghasi [49]
3 years ago
10

the peak intensity of radiation for a particular star occurs at a wavelength of 2.0 nanometers and what spectral band is this

Chemistry
2 answers:
masya89 [10]3 years ago
7 0

Answer:

X-ray

Explanation:

Dmitry_Shevchenko [17]3 years ago
6 0
For a given peak intensity of radiation of a star that occurs at a wavelength of 2 nanometers, this is located at the spectral band of an X-ray. An X-ray's wavelength typically goes from 0.1 nano meters to 10 nano meters. Given that, the wavelength of the star fits perfectly into the range of an X-ray
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Calculate [h+] and [oh−] for a neutral solution at this temperature. express your answers using two significant figures. enter y
taurus [48]
When we have Kw = 1.2x10^-15
and according to Kw formula:
Kw = [OH-] [H+]
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4 0
3 years ago
How many grams of sodium hyrdioxde are in 251.0ml f 0.600m
Furkat [3]

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There are 6.024 grams of sodium hydroxide in the solution.

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Molarity=\frac{Moles}{Volume (L)}

Moles (n)=Molarity(M)\times Volume (L)

Moles of sodium hydroxide = n

Volume of sodium hydroxide solution = 251.0 mL = 0.251 L

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n=0.600 M\times 0.251 L=0.1506 mol

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