Answer : The concentration of guanosine in your sample is, 
Explanation :
Using Beer-Lambert's law :
where,
A = absorbance of solution = 0.70
C = concentration of solution = ?
l = path length = 1.00 cm
= molar absorptivity coefficient guanosine = 
Now put all the given values in the above formula, we get:
Thus, the concentration of guanosine in your sample is,
the first,the thrid and the fourth are the affects of burning fossil fuels on the carbon cycle
Yes it is always changing, as time moves on new technological advancements are made. This makes it possible for new ideas to be created. For example the depiction of an atom went through many stages throughout the years in order to find out our current final version. New scientists and new ideas can add on to older ones, making explanations that make more scientific sense.
The Mass of ice is 69.12g.
What is mass?
It is a dimensionless quantity that expresses a particle or object's mass. The accepted unit of mass under the International System (SI) is the kilogram.
What is temperature?
Temperature is a measure of the average kinetic energy of the particles inside an object. The temperature increases cause these particles to move more quickly. It is possible to measure temperature using a thermometer or a calorimeter.
first calculate the amount of heat as follows;
q= mass of water C= (0°C-55°C)
=100.0g (4.186J/g°c) (-55°C)
=-23023J
Heat lost by water is gained by ice,
-q=m*ΔH
-23023J= m*333J/g
= 69.12g
Therefore, Mass of ice is 69.12g.
Learn more about mass from the given link.
brainly.com/question/338808
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