Answer:
amount of aspirin dissolved = 0.0031 g
so we can say that this is not affect % yield as amount of aspirin lost is very less
Explanation:
given data
mass of aspirin = 1 g
volume of water = 450 mL
solubility of aspirin temperature = 10° C
volume of water added = 1.4 mL
to find out
how much amount aspirin would be lost
solution
we know the solubility of aspirin is
solubility of aspirin = 
solubility of aspirin = 
solubility of aspirin = 2.2 × 
g/mL
so
we can say
amount of aspirin dissolved = solubility of aspirin × volume of water added
put here value
amount of aspirin dissolved = 2.2 × × 1.4
amount of aspirin dissolved = 3.1 × g
amount of aspirin dissolved = 0.0031 g
so we can say that this is not affect % yield as amount of aspirin lost is very less
<span>True.
Manipulated variable or also called the controlled variables are variables in which you regulate. Manipulate or as said control. By this you want to certain the outcome of a certain experiment. Making it close to which you want it or desired it to be, possibly. Characteristics could be: </span>
<span><span>1. </span>You are able to have govern or a certain variable is controllable.</span> <span><span>
2. </span>The outcome or effect of a particular variable was what you were determining or were testing with high probability</span>
<span><span>3. </span>You can either increase or decrease the level of which the variable could take effect on a dependent variable.<span>
</span></span>
It is c.
Hoped this helped.
~Bob Ross
We can use the formula of motion in physics (2nd law od newton) in this problem:
x direction: Fsin ∅ = ma
y direction: Fcos ∅ -mg = 0
∅ is equal to sin ∅ / cos ∅ or x/y
tan ∅ = ma / mg = a /g
Applying acceleration formula:
v = vo + at ; 28 = 0 + 6a ; a = 4.67 m/s^2
∅ = tan-1 (a/g) = tan-1 (4.67/9.81) = <span>25.4 degrees.</span>
