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1. ### How much Heat is Released Question?

... reacted = (3.125 mol) × (1/8) = 0.390625 mol Heat released = (0.390625 mol) × (3244.8 kJ/mol) = 1268 kJ

2 Answers · Science & Mathematics · 29/03/2021

2. ### The elements of which group in the periodic table release the most energy by gaining an electron? The elements of which group in the period?

The elements of Group 18

1 Answers · Science & Mathematics · 31/03/2021

3. ### If you combine 400.0 mL of water at 25.00 ∘C and 110.0 mL of water at 95.00 ∘C, what is the final temperature of the mixture?

... Heat absorbed by the 25.00 °C water = Heat released by the 95.00°C water (400.0 × 1.00 g) × (c J/g°C) × [(...

1 Answers · Science & Mathematics · 02/04/2021

4. ### Enthalpy of Reaction Question?

...184 J/g·°C) x (80 g) x (31.3 - 21.0)°C = 3447.616 J released by the reaction (3447.616 J) / (0.048 mol HCl) x (2 mol HCl...

1 Answers · Science & Mathematics · 29/03/2021

5. ### What is the answer to this tricky chemistry problem?

(124 kJ) / ((10.0 g N2O4) / (92.011 g N2O4/mol)) = 1141 kJ/mol N2O4 So: N2O4(l) + 2 N2H4(l) → 3 N2(g) + 4 H2O(g), ΔH = - 1141 kJ [The minus sign did not come from the calculations...

2 Answers · Science & Mathematics · 31/03/2021