What part does this Neurons that move immpulses to the brain
1 answer:
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Answer:
1.
2. a. No effect;
b. Products;
c. Products;
d. Reactants
Explanation:
1. Equilibrium constant might be written using standard guidelines:
- only aqueous species and gases are included in the equilibrium constant excluding solids and liquids;
- the constant involves two parts: in the numerator of a fraction we include the product of the concentrations of products;
- the denominator includes the product of the concentrations of reactants;
- the concentrations are raised to the power of the coefficients in the balanced chemical equation.
Based on the guidelines, we have two ions on the product side, a solid on the left side. Thus, the equilibrium constant has the following expression:
2. a. In the following problems, we'll be considering the common ion effect. According to the principle of Le Chatelier, an increase in concentration of any of the ions would shift the equilibrium towards the formation of our precipitate.
In this problem, we're adding calcium carbonate. It is insoluble, so it wouldn't have any effect on the equilibrium.
b. Sodium carbonate is completely soluble, it would release carbonate ions. The carbonate ions would combine with calcium cations and more precipitate would dissolve. This would shift the equilibrium towards formation of the products to reproduce the amount of calcium cations.
c. HCl would neutralize calcium hydroxide to produce calcium chloride and water, so the amount of calcium ions would increase, therefore, the products are favored.
d. NaOH contains hydroxide anions, so we'd have a common ion. An increase in hydroxide would produce more precipitate, so our reactants are favored.
Answer:
See Explanations....
Explanation:
NOTE => See attached graph.
1. 25-Turn Electromagnet
a. Strength of Batteries 1.5v vs 6.0v
6v:1.5v => 4:1 voltage ratio => That is, 6v battery is 4x voltage of 1.5v battery.
b. Ratio of Paperclips Picked Up
23clips(6v):6clips(1.5v) => 3.8clips(6v):1clip(1.5v)
That is, the 6 volt battery-EM picks up 3.8x more clips than the 1.5v battery-EM assuming constant number of coils given.
c. Empirical Relationship
From data given, an increase in voltage (V) produces a proportional increase in number of paperclips (C) picked up. Such is a Direct Relationahip between #Clips Picked Up and Battery Voltage.
Thus, C ∝ V => C = kV => k = C/V
Therefore, for k₁ = k₂ => C₁/V₁ = C₂/V₂
2. 50-Turn Electromagnet
a. Ratio of turns between electromagnets.
50-Turn EM : 25-Turn EM => 2:1 ratio of turns between electromagnets
b. Ratio of Paperclips Picked UP
Between maximum voltage and minimum voltages for 50-Turn EM
=> 47 clips (6v) : 13 clips (1.5v) => 3.6:1 ratio...
That is, the 6v battery-EM, on the average, picks up 3.6x more clips than the 1.5v battery-EM given 50-Turn EM.
3. Doubling number of coils:
Doubling the number of coils, on the average, doubles the number of clips picked up by either electromagnet.
Voltage 50-Turn EM 25-Turn EM Pick Up Ratio
1.5v 13 6 2:1
3.0v 26 12 2:1
4.5v 31 15.5 2:1
6.0v 47 23 2:1
4. Doubling Voltages:
Doubling voltage doubles the number of clips picked up by a given electromagnet regardless of the number of coils associated with magnet.
25-Turn EM Voltage Clips Pkd UP
1.5v 6
3.0v 12
Double voltage => Doubles # clips picked up*
50-Turn EM Voltage Clips Pkd UP
1.5v 13
3.0v 26
Double voltage => Doubles # clips picked up*
*Double Voltage => Double #clips picked up regardless of number of coil turns in electromagnet.
5. Predicting number of clips for 7.5v battery-EM
Using linear trendline equations shown on attached graphs...
#clips 50-Turn EM = 7.1333V + 2.5 = 7.1333(7.5) + 2.5 ≅ 56 clips
#clips 25-Turn EM = 3.6333V + 0.5 = 3.6333(7.5) + 0.5 ≅ 27 clips
Overall => 2:1 ratio of clips between 50-Turn EM and 25-Turn EM
6. Slope values based upon trendline equations shown on attached graphs are ...
25 Turn EM => slope = 3.6333
50 Turn EM => slope = 7.1333
Approximately a 2x increase upon doubling the number of coils of electromagnet.
Predicting number of clips for 1V electromagnets:
#Clips (1volt) 25-Turn EM = 3.6333(1) + 0.5 = 3.6833 ≅ 4 clips
#Clips (1volt) 50-Turn EM = 7.1333(1) + 2.5 = 9.6333 ≅ 10 clips
Shows to be consistent with double #clips with double number of coil turns.
