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Author Question: The combustion of titanium with oxygen produces titanium dioxide: Ti(s) + O2(g) TiO2(s)When 2.090 g ... (Read 207 times)

pepyto

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on: Nov 18, 2019

Question 1

What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL of solution having a density of 1.25 g mL-1 by 10.2 °C? (The specific heat of the solution is 3.733 J g-1 K-1.)
◦
8.20 kJ

◦
-11.9 kJ

◦
-7.43 kJ

◦
-12.51 kJ

◦
6.51 kJ


Question 2

The combustion of titanium with oxygen produces titanium dioxide:

Ti(s) + O2(g) → TiO2(s)

When 2.090 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00 °C to 91.30 °C. In a separate experiment, the heat capacity of the calorimeter is measured to be 9.84 kJ K-1. The heat of reaction for the combustion of a mole of Ti in this calorimeter is ________ kJ mol-1.
◦ -3.40
◦ -1.49 × 104
◦ 14.9
◦ 652
◦ -28.5
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
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Marked as best answer by pepyto on Nov 18, 2019

aloop

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Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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pepyto

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Reply 2 on: Nov 18, 2019
Thanks for the timely response, appreciate it

aliotak

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Reply 3 on: Yesterday
Gracias!

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