Answer: The new pressure is 0.509 atm
Explanation:
The combined gas equation is,
![\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7BP_1V_1%7D%7BT_1%7D%3D%5Cfrac%7BP_2V_2%7D%7BT_2%7D)
where,
= initial pressure of gas = 1.20 atm
= final pressure of gas = ?
= initial volume of gas = 580 ml
= final volume of gas = 1.45 L = 1450 ml (1L=1000ml)
= initial temperature of gas = ![22^0C=(22+273)K=295K](https://tex.z-dn.net/?f=22%5E0C%3D%2822%2B273%29K%3D295K)
= final temperature of gas = ![40^0C=(40+273)K=313K](https://tex.z-dn.net/?f=40%5E0C%3D%2840%2B273%29K%3D313K)
Now put all the given values in the above equation, we get:
![\frac{1.20\times 580}{295}=\frac{P_2\times 1450}{313}](https://tex.z-dn.net/?f=%5Cfrac%7B1.20%5Ctimes%20580%7D%7B295%7D%3D%5Cfrac%7BP_2%5Ctimes%201450%7D%7B313%7D)
![P_2=0.509atm](https://tex.z-dn.net/?f=P_2%3D0.509atm)
The new pressure is 0.509 atm
Data:
Molar Mass of Nickel = 58,7 g/mol
Solving:
58,7 g → 1 mol
y -------→ 2.63 mol
Solving: (They are proportional measures, the rule of three is made (directly proportional)
![\frac{58.7}{y} = \frac{1}{2.63}](https://tex.z-dn.net/?f=%20%5Cfrac%7B58.7%7D%7By%7D%20%3D%20%5Cfrac%7B1%7D%7B2.63%7D%20)
multiply cross
![1*y = 58.7*2.63](https://tex.z-dn.net/?f=1%2Ay%20%3D%2058.7%2A2.63)
Data Given:
Time = t = ?
Current = I = 10 A
Faradays Constant = F = 96500
Chemical equivalent = e = 107.86/1 = 107.86 g
Amount Deposited = W = 17.3 g
Solution:
According to Faraday's Law,
W = I t e / F
Solving for t,
t = W F / I e
Putting values,
t = (17.3 g × 96500) ÷ (10 A × 107.86 g)
t = 1547.79 s
t = 1.54 × 10³ s
Carbon is the reference taken to assign the atomic mass unit
- One twelfth of the mass of unbound carbon-12 is taken as 1amu
- The unit for the atomic mass constant is Dalton (Da)
- This unit is standard when doing calculations in chemistry and physics
- 1amu = 1.6605x10⁻¹⁹g
- This was also derived from the law of definite proportions
- This standard has been set by the International Union of Pure and Applied Chemistry (IUPAC)
- The IUPAC is responsible for assigning various standards such as the nomenclature of various compounds, and updating the periodic table of elements.
- According to the IUPAC carbon is the reference taken to assign the atomic mass unit
Learn more about atomic mass units here:
brainly.com/question/338808
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Bbg I’m so sorry looking at this gives me a seizure