Given mass of tungsten, W = 415 g
Molar mass of tungsten, W = 183.85 g/mol
Calculating moles of tungsten from mass and molar mass:
Which net change occurs in a nuclear fusion
1 answer:
Correct Answer: <span>(4) Mass is converted to energy.
Reason:
In a nuclear fusion reaction, two small nuclei are fused to formed a relatively heavy nuclei. The mass of the daughter nuclear is less as compared to parent nuclei. This difference is mass is converted into energy. The energy liberated during this process can be estimated by the Einstein's equation i.e. E = m</span>
. <span> </span>
Reason:
In a nuclear fusion reaction, two small nuclei are fused to formed a relatively heavy nuclei. The mass of the daughter nuclear is less as compared to parent nuclei. This difference is mass is converted into energy. The energy liberated during this process can be estimated by the Einstein's equation i.e. E = m</span>
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Answer:
b. 186 g
Explanation:
Step 1: Write the balanced equation.
4 NH₃(g) + 6 NO(g) → 5 N₂(g) + 6 H₂O(l)
Step 2: Calculate the moles corresponding to 145 g of N₂
The molar mass of nitrogen is 28.01 g/mol.
Step 3: Calculate the moles of NO required to produce 5.18 moles of N₂
The molar ratio of NO to N₂ is 6:5.
Step 4: Calculate the mass corresponding to 6.22 moles of NO
The molar mass of NO is 30.01 g/mol.