<em><u>Answer:</u></em>
<h3>look at the balanced chemical equation for this synthesis reaction
</h3><h3> S mole ratio between nitrogen gas and hydrogen gas. This means that, regardless of how many moles of nitrogen gas you have, the reaction will always consume twice as many moles of hydrogen gas.</h3><h3 />
10.2.5 mg/kg I think this was a confusing question
Answer:
C. Reactivity
Explanation:
Density, color, melting point, rigidity, fluidity, shape, size etc are all physical properties of any substance.
Hope this helped!
Answer:
pH = 1.348
Explanation:
- H2SO3 + H20 ↔ H3O+ + HSO3-
∴ Ka1 = 1.7 E-2 = ( [ H3O+ ] * [ HSO3- ] ) / [ H2SO3 ]
∴ <em>C </em>H2SO3 (aq) = 0.163 M
- HSO3- + H2O ↔ H3O+ + SO32-
∴ Ka2 = 6.4 E-8 = ( [ H3O+ ] * [ SO32- ] ) / [ HSO3- ]
∴ Kw = 1 E-14 = [ H3O+ ] * [ OH- ]
since Ka1 >>> Ka2 ( difference between the constants is greater than the order of E3 ); then the most importan equilibrium is Ka1 and we can assume that [ SO32- ] <<< [ HSO3- ]
mass balance:
⇒ <em>C </em>H2SO3 = 0.163 = [ H2SO3 ] + [ HSO3- ]......(1)
charge balance:
⇒ [ H3O+ ] = [ HSO3- ]...........(2) where [ OH- ] and [ SO32- ] is neglected. the first comes from water and the second comes from Ka2.
(2) in (1):
⇒ [ H2SO3 ] = 0.163 - [ H3O+ ]......(3)
(2) and (3) in Ka1:
⇒ 1.7 E-2 = [ H3O+ ]² / ( 0.163 - [ H3O+ ] )
⇒ [ H3O+ ]² + 1.7 E-2 [ H3O+ ] - 2.771 E-3 = 0
⇒[ H3O+ ] = 0.045 M
⇒ pH = - Log [ H3O+ ] = - Log ( 0.045 )
⇒ pH = 1.348
<em>PLATO ANSWERS: </em>
<u>A.</u> Which source of electricity generation caused the most emissions?
<u>B.</u> What types of industries are responsible for greenhouse gas emissions?
<u>C.</u> What caused the dip in greenhouse gas emissions in transportation after 2007?
<em>Hope I helped some, Have a great day!</em>