3 years ago

If light gave off 7.17 x 10^17 of energy what is its wavelength?

Chemistry

1 answer:

professor190 [17]3 years ago

7 0

Answer:

,mhmh

Explanation:

hghfhfh

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What type of fuel is burned in a nuclear power plant?

Hatshy [7]

Answer:

greenhouse gases

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3 years ago

Tin has ten stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occuring tin atoms. How many atoms of 124Sn are pr

matrenka [14]

The average atomic mass of Sn is 118.71 g/mol

the percentage of heaviest Sn is 5.80%

the given mass of Sn is 82g

The total moles of Sn will be = mass / atomic mass = 82/118.71=0.691

Total atoms of Sn in 82g = $6.023X10^{23}X0.691=4.16X10^{23}$

the percentage of heaviest Sn is 5.80%

So the total atoms of $Sn^{124}$ = 5.80% X $4.16X10^{23}$

Total atoms of $Sn^{124}$ = $2.41X10^{22}$ atoms

the mass of $Sn^{124}$ will be = $\frac{2.41X10^{22}X124}{6.023X10^{23}}=4.96g$

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3 years ago

Why were foreigners allowed to hold office for the Mongols

Slav-nsk [51]

They shots sides stoned found six end

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4 years ago

20 poll

aleksley [76]

Answer: n=15.56moles

Explanation:

PV = nRT

where

P is pressure in atmospheres

V is volume in Liters

n is the number of moles of the gas

R is the ideal gas constant = given as (0.0821L -atm/k-mol

PV = nRT

n= PV/RT

n= (1.5 X 230)/ (0.0821 X 270)

n= 15.56 moles

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4 years ago

Why does ice float in water?

MaRussiya [10]

Ice has a lower density than the density of water.

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