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w.com/ilrn/takessignment takeCovalentActivity.do?locator- assignment-take Use th

ID: 637656 • Letter: W

Question

w.com/ilrn/takessignment takeCovalentActivity.do?locator- assignment-take Use the References to access important valnes if needed for this question. The following information is given for manganese at latm boiling point- 2095 °C melting point 1244 °C specific heat solid-0477 gc specific heat liquid 0.837 gc ??,ap(2095 °C-225 urnol ??!fs(l 244°C)-14.6 kJ/mol kJ are required to melt a 35.3 g sample of solid manganese, Mn, at its normal melting point Submit Answer Retry Entire Group 2 more group attempts remaining 4 PrevousNe

Explanation / Answer

Moles of Mn = mass/molecular weight

= 35.3g / 54.938g/mol

= 0.6425 mol

Heat of fusion is required to melt it

H = 14.6 kJ/mol x 0.6425 mol

= 9.38 kJ