plants need carbon dioxide in order to survive. Plants get this gas from? which is something all organisms need.
1 answer:
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Answer:
139.94 grams of solute is present in kilograms of water
Explanation:
Temperature of the ice water = T = 1.0°C
Temperature of the mixture = =-3.0°C
Depression in freezing point
=1.0°C-( -3.0°C)=4°C
m = molality of the solution
= Molal depression constant
Mole of solute = 0.1705 moles
Mass of solute = 11.1 g
Moles of solute =
Molar mass of the solute= M
M = 65.088 g/mol
Molality of the solution = m =
g of solute /kg of water
139.94 grams of solute is present in kilograms of water
Answer:
The concentration of the standard NaOH solution is 0.094 moles/L.
Explanation:
In the titration, the equivalence point is defined as the point where the moles of NaOH (the titrant) and KHP (the analyte) are equal:
moles of NaOH = moles of KHP
The is 40.82mL = 0.04082L and the moles of KHP are
Replacing at the first equation: