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Arturiano [62]
3 years ago
5

How many grams of agarose would you add to make 50ml of a 2 percent gel? why?

Chemistry
1 answer:
vodka [1.7K]3 years ago
8 0
About 1 gram. 1 part of 50 is 2%
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The movement of substances from an area of low concentration to an area of high concentration is called what?
RUDIKE [14]

Answer:

Diffusion

Explanation:

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2 years ago
Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10–7m
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6 0
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1)How can scientists use a seismograph to determine the density and depth of Earth's layers?
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3 years ago
Wharis the mass in grams of 2.000 mol of oxygen atoms?
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8 0
3 years ago
You have 400 kg of a radioactive substance with a short half-life of 1000 years. how much will be left after these times?
Amiraneli [1.4K]
Half-life of a radioactive substance is the time required to reduce the amount of substance to half of its initial amount. 

In present case, half-life is material is given as 1000 years and initial amount of material is given as 400 kg
 
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Answer 2) For 2000 years, radioactive material has crossed 2 times the half life. Therefore ,  amount of the material will be left to 1/4 the initial amount. Hence, amount of substance left after 2000 years = 400/4 = 100 kg.

Answer 3) 
 For 4000 years, radioactive material has crossed 4 times the half life. Therefore , amount of the material will be left to 1/16 the initial amount. Hence, amount of substance left after 4000 years = 400/16 = 25 kg.
8 0
3 years ago
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