The opposite is -6 and the absolute value is 6
Nitrogen (N) has a molar mass of about 14.007 g/mol, so you have
100.0 g N₂ = (100.0 g) • (1/28.014 mol/g) ≈ 3.570 mol N₂
Hydrogen (H) has a molar mass of about 1.008 g/mol, so
100.0 g H₂ = (100.0 g) • (1/2.016 mol/g) ≈ 49.60 mol H₂
In the balanced reaction, 1 mole of N₂ reacts with 3 moles of H₂ to make 2 moles of NH₃. We have
3.570 • 3 ≈ 10.71
so the reaction would use up all 3.570 mol N₂ and 10.71 mol H₂ to produce about 7.139 mol NH₃.
(A) H₂ is the excess reactant. There is an excess of 49.60 - 10.71 ≈ 38.89 mol H₂.
(B) N₂ is the limiting reactant. All of the N₂ gets consumed in the reaction.
(C) NH₃ has a molar mass of (14.007 + 3 • 1.008) g/mol = 17.031 g/mol. This reaction would theoretically yield about 7.139 mol NH₃, or
7.139 mol NH₃ = (7.139 mol) • (17.031 g/mol) ≈ 121.6 g NH₃
For a parabola ax² + bx + c the vertex's x equals -b/2a
a = 6 , b = 0
x = -0 / 2*6 => 0
Plug in x = 0 to find the y value :
y = 6 * 0² + 5 - 42 => - 37
Therefore the parabola vertex is :
( 0 , - 37 )
if a < 0 , then the vertex is a maximum value
if a > 0, then the vertex is a minimum value
minimum ( 0, -37 )
hope this helps!
Answer:
The answer is
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Step-by-step explanation:
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To solve for y cross multiply
That's
3( x - 1) = 2y
2y = 3x - 3
Divide both sides by 2 to make y stand alone
That's
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We have the final answer as
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Hope this helps you
