Use the following information to answer the next question. Diboron trioxide, B203(s) has many uses including being used as an additive in the production of fibre optic cables. The following reactions can be used in the synthesis of diboron trioxide. H;BO3 (aq) → HB0,(aq) + H2O(1) A,H = +0.4kJ H, B407 (aq) + H,0(1) → 4HBO2 (aq) A,H = -12.1kJ H, B40, (aq) → 2B2O3(s) + H2O(1) A,H = +17.9kJ Using the information above, the enthalpy change for the following reaction 2H3BO3 (aq) → B,0;(8) + 3H2O(1) is calculated to be kJ. Record your 3-digit answer. Include sign, do not include units.

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Chapter1: Chemical Foundations
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Use the following information to answer the next question.
Diboron trioxide, B203(s) has many uses including being used as an additive in the production of fibre optic
cables. The following reactions can be used in the synthesis of diboron trioxide.
H3BO3 (aq) → HBO2(aq) + H2O(1)
H2B407 (aq) + H2O(1)
H, B40, (aq) → 2B2O;(s) + H2O(1) A,H=+17.9kJ
A,H = +0.4kJ
4HBO2 (aq) A,H = -12.1kJ
Using the information above, the enthalpy change for the following reaction
2H3BO3 (aq) → B,0;(8) + 3H2O(1)
is calculated to be
kJ.
Record your 3-digit answer. Include sign, do not include units.
Transcribed Image Text:Use the following information to answer the next question. Diboron trioxide, B203(s) has many uses including being used as an additive in the production of fibre optic cables. The following reactions can be used in the synthesis of diboron trioxide. H3BO3 (aq) → HBO2(aq) + H2O(1) H2B407 (aq) + H2O(1) H, B40, (aq) → 2B2O;(s) + H2O(1) A,H=+17.9kJ A,H = +0.4kJ 4HBO2 (aq) A,H = -12.1kJ Using the information above, the enthalpy change for the following reaction 2H3BO3 (aq) → B,0;(8) + 3H2O(1) is calculated to be kJ. Record your 3-digit answer. Include sign, do not include units.
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