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Alexxx [7]
4 years ago
7

How many moles are in 0.456 g of chlorine

Chemistry
1 answer:
Mila [183]4 years ago
4 0

Answer:

0.013 moles Cl

Explanation:

Grams --> Moles       Divide by Molar Mass

Molar Mass of Chlorine (Cl) is 35.5. This can be found on the Periodic Table.

Set Up:     (0.456 g Cl) (1 Cl / 35.5 g)

                0.456 g * 1 = 0.456

                0.456 / 35.5 = 0.01284507

                Round to 0.013

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Fynjy0 [20]

Answer:

Explanation:

I’m pretty sure because they need the wait so that they can throw it far and fast

hope this helps mate good day

5 0
3 years ago
Read 2 more answers
Calculate the quantity of energy produced per gram of U-235 (atomic mass = 235.043922 amu) for the neutron-induced fission of U-
Alexus [3.1K]

Answer:

To calculate the amount of energy produced per gram from Uranium- 235 we call on the formula:

delta(m)= mass of the products - mass of reactants

Given the atomic mass of Xe-144 = 143.9385 amu; atomic mass of Sr-90= 89.907738 amu;  atomic mass of  U-235= 235.043922 amu

Therefore:

delta(m)=  (143.9385 + 89.907738) - (235.043922)  = -1.197682 amu

Recall that to calculate energy in joules, we use the formula:

Energy = mc^2

Therefore: Energy = (-1.197582/6.022 x 10^26)kg x (3 x 10^8 m/s)^2

= -1.7898104 x 10^-10 J

= (-1.7898104 x 10^-10 x 6.022 x 10^23/235.043922)

= -4.586 x 10^11 J per gram of  energy released

Explanation:

To calculate the amount of energy produced per gram from Uranium- 235 we call on the formula:

delta(m)= mass of the products - mass of reactants

Given the atomic mass of Xe-144 = 143.9385 amu; atomic mass of Sr-90= 89.907738 amu;  atomic mass of  U-235= 235.043922 amu

Therefore:

delta(m)=  (143.9385 + 89.907738) - (235.043922)  = -1.197682 amu

Recall that to calculate energy in joules, we use the formula:

Energy = mc^2

Therefore: Energy = (-1.197582/6.022 x 10^26)kg x (3 x 10^8 m/s)^2

= -1.7898104 x 10^-10 J

= (-1.7898104 x 10^-10 x 6.022 x 10^23/235.043922)

= -4.586 x 10^11 J per gram of  energy released

7 0
4 years ago
Which temperature is equal to 120. K?<br> (1) -153°C (3) +293°C<br> (2) -120.°C (4) +393°C
Marysya12 [62]
First of all, the formula for finding Kelvin is Celsius + 273
Therefore, if we subtract 273, we get the temperature in degrees
120 - 273 = - 153

Therefore, the answer is (1), or -153 degrees Celsius

Hope this helped!! :D
3 0
3 years ago
calculate the molality of commercial HCl solution which is 12.1Molarity, and has a density of 1.19g/mL, and is 37.2wt.%HCl.
shutvik [7]

Answer:

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8 0
4 years ago
The calculated yield for water was 176 g but the measured yield what is 140 g what percent is the yield
IrinaK [193]
Divide measured yield by calculated yield
140/176 = 79.55%
6 0
4 years ago
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