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Bingel [31]
3 years ago
5

An enzyme is a protein that acts as a catalyst in a chemical reaction that takes place in a living thing true or false

Chemistry
1 answer:
Zigmanuir [339]3 years ago
6 0
<span>An enzyme is a protein that acts as a catalyst in a chemical reaction that takes place in a living thing. <em>It is true.</em></span>
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Answer:

2300J

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A solution containing 0.102 g of an unknown compound dissolved in 100. mL of water has an osmotic pressure of 28.1 mmHg at 20.°C
IrinaVladis [17]

Answer:

MM = 680g / mol

Explanation:

Hello! To calculate the molar mass of the compound (g / mol), I first have to calculate the molarity.

Molarity can be calculated from the osmotic pressure equation.

op = M * R * T

op = osmotic pressure = 28.1mmHg * (1 atm / 760mmHg) = 0.037atm

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As I have the volume = 100ml * (1L / 1000ml) = 0.1L

I can calculate the amount of moles

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n = m / MM

m = mass

MM = molar mass

MM = m / n = 0.102g / 0.00015mol

MM = 680g / mol

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