Notice that the oxygen atom produced in the first step of this mechanism is consumed in the second step and therefore does not appear as a product in the overall reaction. Species that are produced in one step and consumed in a subsequent step are called intermediates.
I hope that helps
ps. not my words, my older cousins
Answer:
4.3 x 10⁶ kJ are released
Explanation:
From the balanced chemical equation we know that when 2 moles of hydrogen peroxide decompose, 191 kJ of heat are released. So what we need to calculate is the number of moles the 765 kg of H2O2 represent and calculate the heat released.
Molar Mass H2O2 = 34.01 g/mol
Mass H2O2 = 765 Kg x 1000 g/Kg = 765000 g
moles H2O2 = 1 Mol / 34.01 g x 765000 grams = 22.5 Mol
(-196.1 kJ/ 2 mol H2O2 ) x 22.5 mol H2O2 = -4.3 x 10⁶ kJ
Answer:
$19.20
Explanation:
divide 3.20 by 8 in order to get the cost of 1 can
3.20/8 = 0.40
multiply the cost of 1 can ($0.40) by 48 in order to get the cost of 48 cans
0.40 * 48 = 19.20
$19.20 for 48 cans of corn
Answer:
See below
Explanation:
(NH4)2SO4 Molar weight (from periodic table)
(N =14 H4 = 4 ) * 2 = 36
S = 32 O4 = 64 TOTAL = 132 gm/mole
N % = ( 2*14) / 132 = 21.2% molar mass = 28 gm
H % = (2 *4) / 132 = 6% molar mass = 8 gm
S % = 32/132 = 24.2 % molar mass = 32 gm
O % = (64) / 132 = 48.5% molar mass = 64 gm
