Answer:
-573.67
Explanation:
whenever energy is released in a chemical reaction, we would then expect the delta H of the reaction to be negative because the reaction is an exothermic reaction.
now we have that 2.81 moles of fuel when it combusts would releases 1612kJ of energy
thus, 1 mole will release 1612/2.81 = -573.67kJ of heat
Therefore the delta H of the reaction = -573.67 kJ/mol
<em>A white precipitate of silver chloride will be formed when Hydrogen chloride gas is passed through silver nitrate.</em>
<em>A white precipitate of silver chloride will be formed when Hydrogen chloride gas is passed through silver nitrate.2HCl+2AgNO</em><em>³</em>
<em>→2AgCl+2HNO</em><em>³</em>
<em>The reaction between AgCl and NH4OH will result in the products of Ag(NH3) 2+and Cl </em><em>-</em><em> ions</em><em> </em><em>.</em>
<em>AgCl+2NH 4OH→Ag(NH3) </em><em>²</em><em>Cl+H</em><em>H²</em><em>O</em>
There is 70 percent probability of rain showers.
Answer:
1.977 g/L
Nitrous oxide
Names
Molar mass 44.013 g/mol
Appearance colourless gas
Density 1.977 g/L (gas)
Melting point −90.86 °C (−131.55 °F; 182.29 K)
Answer:
pH = 10
The solution is basic.
Explanation:
A solution contains 1 × 10⁻⁴ M OH⁻ ions. First, we will calculate the pOH.
pOH = -log [OH⁻]
pOH = -log 1 × 10⁻⁴
pOH = 4
We can find the pH of the solution using the following expression.
pH + pOH = 14.00
pH = 14.00 - pOH = 14.00 - 4 = 10
Since the pH > 7, the solution is basic.
