The solution contains solute and solvents, have evenly distributed particles, are homogenous and can include solid, gas and liquid in them together.
<h3>What are the solutions?</h3>
The homogenous substance composed of a mixture of two or many substances in it is called a solution. The solute is the substance that can be liquid, solid or gas that gets dissolved in it.
The solvent is another substance in which the solute gets dissolved to produce a solution. The particles of the solute and the solvent are evenly dispersed in the solution.
Therefore, the solution is a homogenous mixture.
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The balanced chemical equation for reaction of and is as follows:
From the balanced chemical equation, 2 mol of reacts with 1 mol of .
First calculating number of moles of as follows:
On rearranging,
Here, M is molarity and V is volume. The molarity of is given 0.274 M or mol/L and volume 155 mL, putting the values,
Since, 1 mol of reacts with 2 mol of thus, number of moles of will be .
Now, molarity of is given 0.305 M or mol/L thus, volume can be calculated as follows:
Therefore, volume of is 278.5 mL.
A bias is said to occur when a researcher influence the outcome of his experiments. Many things can bias a scientist observation.
A design bias may occur if the scientist did not take into consideration the inherent biases that are liable in the experiment he is performing.
Sampling bias may occur if the process of sapling introduces an inherent bias into the study; this may be in form of omission or inclusion.<span />
Hey there!
A half-life means after a certain amount of time, half of that substance will have decayed after that time.
An equation for exponential decay is the following:
y = a(1 - b)ⁿ
Where a is the original amount, b is the rate of decay, and n is time.
1000 is about 0.3 of a half life, 1000 divided by 138 days (3312 hours) is approximately 0.3.
Let's plug in values to that equation:
y = 321(1 - 0.5)^(0.3)
Simplify.
y = 260.73
There will be 260.73mg of polonium-210 remaining after 1000 hours.
Hope this helps!
A is the anwser. Fuel in the ocean would cause pollution