The answer to this question would develop<span> a theory.
If someone using the scientific method correctly, they will be closer to finding a theory doesn't matter what the result is. But developing a theory is a long process and need multiple amounts of research.
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We know that, Molality =
Given: Molality of solution = 2.25 m
Weight of solvent = 30 g = 0.030 kg
Molecular weight of AlCl3 = 133.34 g/mol
Therefore we have, 2.25 =
∴, weight of solute (g) = 9.00 g
Thus, <span>
9.00 g of AlCl3 is required to make a 2.25m solution in 30.0 g of water</span>
Answer: a) is the limiting reagent
b) 3.59 g
c) 11.6g
Explanation:
To calculate the moles :
According to stoichiometry :
a) 9 moles of require= 4 moles of
Thus 0.15 moles of will require= of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
b) As 9 moles of give = 8 moles of
Thus 0.15 moles of give = of
Mass of
c) As 9 moles of give = 3 moles of
Thus 0.15 moles of give = of
Mass of
You put a piece of colored film on top of the light to get a different color. It could also work with tissue paper because of its thinness.
Answer:
We use coolant instead of water because when heated, water can start to accumulate the minerals that it has, and this can corrode the metal on your car. Other solution could be to use distilled water, but is will also corrode the metal of your radiator. One advantage of ethylene glycol is that prevents the corrosion in your radiator providing a protective coating to the metals.