Answer:
The final concentration is 0,151 M.
Explanation:
A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).
We convert the unit of volume in L into ml: 3,25 x 1000= 3250 ml
We use the formula for dilutions:
C1 x V1 = C2 x V2
C2= (C1 xV1)/V2
C2= (32, 5 ml x 15, 1 M)/ 3250 ml
<em>C2=0,151 M</em>
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The refrigerant does all the work. It's a strategy in which a little measure of fluorescent color is infused into and circled through a working framework of an A/C The refrigerant blend will escape and gather at all break destinations.</span>
Answer:
percent error = - 99.134 %
Explanation:
Given data:
measured length = 1.85 cm
accepted or given value length = 2.15 m
percent error = ?
Solution:
First of all we will convert the length in meter into cm.
1 meter = 100 cm
2.15 × 100 = 215 cm
Formula:
percent error = (measured value - accepted value/ accepted value) × 100%
Now we will put the values in equation
percent error = (1.85 cm - 215 cm/ 215 cm) × 100%
percent error = -0.9914 × 100%
percent error = - 99.134 %
Answer:
10 ms-1
Explanation:
Kinetic energy = 1/2 × m × v^2
1 = 1/2× 20 ×10^ -3 × v^2
v ^ 2 = 100
v = 10 ms-1
note : convert grams in to kg before substitution as above
