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taurus [48]
3 years ago
14

What is the mass of 2.5 mol of ca, which has a molar mass of g/mol

Chemistry
1 answer:
swat323 years ago
3 0
Atomic mass Ca = 40 a.m.u

1 mole Ca ----------- 40 g
2.5 mols Ca -------- ( mass Ca )

Mass Ca = 2.5 x 40 / 1

Mass Ca = 100 / 1

= 100 g of Ca

hope this helps!
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Answer:

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An optimum distance is reached when the two atoms attain the lowest potential energy. This is designated as the bond distance of the two atoms.

Hence two atoms have lower potential energy when bonded than when separated at large distance.

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Explanation:

Equation of the reaction:

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The standard enthalpy change of formation for a compound,

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How many moles of O2 are consumed if 20 moles of SO2 are produced
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Answer:

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I hope this helps

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