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sasho [114]
3 years ago
7

Chemist determined by measurements that 0.015 moles of nickel participated in a chemical reaction. Calculate the mass of nickel

that participated in the chemical reaction. Round your answer to 2 significant digits.
Chemistry
1 answer:
san4es73 [151]3 years ago
5 0

Mass of Ni = 0.015 mol Ni × (58.693 g Ni/1 mol Ni) = 0.88 g Ni

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(b) The formula used for change in enthalpy of the gas is:

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\Delta H=nC_p(T_2-T_1)

\Delta H=(5moles)\times (3R)\times (573-298)

\Delta H=(5moles)\times 3(8.314J/mole.K)\times (573-298)

\Delta H=34295.25J=34.29kJ

The change in enthalpy of the gas is 34.29 kJ.

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