Given that the molarity of DCP equals 9.98x10-4M. And it
used to analyze a sample of extract from 2.50g of solid food. The titration
required 22.49mL of DCP. 87.00% of all the ascorbic acid in the food was
collected in the extract.
Amount of solid = 60 mg AA (100mg/87mg)(1g/1000mg)(1 mol
AA/176.124 gAA)(1mol DPC/1mol AA)( 1L DCP/9.98x10-4mol DPC)(2.50g solid/0.02249
L DPC) = 43.6 g solid.
Answer:
It is Xylem!
Explanation:
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For this item, the <span>∆t will be the value of temperature difference that the substances will experience once subjected to same amount of heat. The heat is equal to,
H = mcp</span><span>∆t
where H is heat, m is mass, cp is specific heat, and </span><span>∆t is temperature difference.
The compounds given, despite having the almost the same molecular weight, will have different </span><span>∆t because of the different intermolecular forces present especially in the alkyl groups present. </span>
The answer is B. Thermal Conductivity
To calculate the relative formula mass:
Write the formula of the compound.
Write the numbers of each atom in the formula.
Insert the relative atomic mass for each type of atom.
Calculate the total mass for each element.
Add up the total mass for the compound.