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3 years ago

How many grams are in a 1.48x107 ig

Chemistry

1 answer:

Firdavs [7]3 years ago

6 0

Answer:978989989.1429323

Explanation:

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Each isotope has a unique half-life. The half-life of an isotope is the time taken for half of the starting quantity to decay (w

Tems11 [23]

Answer:

b. 17,190

Explanation:

Using the formula for C-14 dating,

$t=\dfrac{ln(\dfrac{N}{N_0})t_\frac{1}{2} }{-0.693}$

where Present Value N =1/8 of Parent Sample

Initial Value, $N_0$ =1

Half Life, $t_\frac{1}{2}$ =5730 years

$t=\dfrac{ln(\dfrac{1/8}{1})5730}{-0.693}$

=17,190

Therefore the fossil is about 17190 years old.

7 0

3 years ago

Which atom is most likely to accept electrons to form an ionic bond?

Alinara [238K]

Halogens (atoms with 7 valence electrons) and Hydrogen

or generally, atoms with their shells almost full

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3 years ago

How many grams of water are needed to dissolve 27.8 g of ammonium nitrate NH4NO3 in order to prepare a 0.452 m solution?

Vanyuwa [196]

Answer: 770 g water are needed to dissolve 27.8 g of ammonium nitrate $NH_4NO_3$ in order to prepare a 0.452 m solution

Explanation:

Molality : It is defined as the number of moles of solute present per kg of solvent

Formula used :

$Molality=\frac{n\times 1000}{W_s}$

where,

n= moles of solute

Moles of $NH_4NO_3=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{27.8g}{80.0g/mol}=0.348moles$

$W_s$ = weight of the solvent in g = ?

$0.452=\frac{0.348\times 1000}{W_s}$

$W_s=770g$

Thus 770 g water are needed to dissolve 27.8 g of ammonium nitrate $NH_4NO_3$ in order to prepare a 0.452 m solution

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3 years ago

At what height the acceleration due to gravity of the earth become half ?

Serggg [28]

Answer:

Acceleration due to gravity is reduced to half its value on the earth's surface at an altitude of 2.65×106 m

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3 years ago

How many moles of glucose (C6H12O6) are in 1.5 liters of a 4.5 M C6H12O6 solution?

zepelin [54]

For the answer to the question above asking, h<span>ow many moles of glucose (C6H12O6) are in 1.5 liters of a 4.5 M C6H12O6 solution?
The answer to your question is the the third one among the given choices which is 6.8 mol.
</span><span>moles glucose = 1.5 x 4.5 = 6.8 </span>

3 0

3 years ago

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