Two hundred grams of a substance requires 9.76kj of heat to raise its temperature from 25 C to 45 C. It has a specific heat of 2
.44J/g. Use the table to identify the substance.
A Ethanol
B Gasoline
C Ice
D Air
I think it's gasoline!
A Ethanol
B Gasoline
C Ice
D Air
I think it's gasoline!
2 answers:
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Explanation:
We will balance equation which describes the reaction between sulfuric acid and sodium bicarbonate: as follows.
Next we will calculate how many moles of are present in 85.00 mL of 1.500 M sulfuric acid.
As, Molarity =
1.500 M =
n = 0.1275 mol
Now set up and solve a stoichiometric conversion from moles of to grams of
. As, the molar mass of
is 84.01 g/mol.
= 21.42 g
So unfortunately, 15.00 grams of sodium bicarbonate will "not" be sufficient to completely neutralize the acid. You would need an additional 6.42 grams to complete the task.