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kaheart [24]
3 years ago
11

A student walks 3.0 hours and travels 6.0km what is the averge speed

Chemistry
1 answer:
saveliy_v [14]3 years ago
6 0

Answer:

2.0 km/hr

Explanation:

6.0 km/3.0 hrs

= 2.0 km/hr

Hope this helps!      :3

plz mark as brainliest!

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<u>Answer:</u> The molecular weight of protein is 1.14\times 10^2g/mol

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\pi=i\times \frac{m_{solute}\times 1000}{M_{solute}\times V_{solution}\text{ (in mL)}}}\times RT

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M_{solute} = molar mass of protein = ?

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R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of the solution = 25^oC=[25+273]K=298K

Putting values in above equation, we get:

0.0861atm=1\times \frac{0.4g\times 1000}{M\times 100}\times 0.0821\text{ L. atm }mol^{-1}K^{-1}\times 298K\\\\M=1136.62g/mol=1.14\times 10^2g/mol

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