The volume of H₂ : = 15.2208 L
<h3>Further explanation</h3>
Given
Reaction
2 As (s) + 6 NaOH (aq) → 2 Na₃AsO₃ (s) + 3 H₂ (g)
34.0g of As
Required
The volume of H₂ at STP
Solution
mol As (Ar = 75 g/mol) :
= mass : Ar
= 34 g : 75 g/mol
= 0.453 mol
From the equation, mol ratio As : H₂ = 2 : 3, so mol H₂ :
=3/2 x mol As
=3/2 x 0.453
= 0.6795
At STP, 1 mol = 22.4 L, so :
= 0.6795 x 22.4 L
= 15.2208 L
All energy can generally be considered to be either kinetic energy or potential energy<span>. </span>Some specific forms of energy<span>, </span>such as electrical<span>, </span>magnetic, and gravitational energy<span>, </span>can operate in the space around objects and affect other objects that come near<span>. So, the correct answer is B, I believe. :)
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The coordination number is 6. The outer Cl- ion isn't included, so you count 4 x NH3 and 2 x Cl- are within Co's coordination sphere.
Answer:
For the resolution of these questions, it necessary to get the information from the well known humidity charts that allow us to accurately and quickly know all the values required for being able to use these values in other more specific procedures, then the values obtained are getting as:
absolute humidity = 0.0069 kg/kg air
humid volume = 128.7 m3 /kg dry air
specific enthalpy = 36.64 kJ/kg
