Answer:
Active transport by the Na+-K+ pump
Explanation:
Active transport by the Na+-K+ pump
Maintenance (and restoration) of the resting ion concentrations depends on the Na+-K+ pump. Once gated ion channels are closed, the combined action of the pump and ion leakage (particularly that of K+) establishes a resting membrane potential in a typical neuron of around âˆ'70 mV.
Answer:
Explanation:
Citric acid is a tribasic acid , having three ionizable hydrogen in them.
Let the molarity of citric acid be X .
Normality = 3 X
Using the formula S₁ V₁ = S₂ V₂
.4776 M x 16.25 mL = 10 mL x 3 X
X = .2587
Hence molarity of citric acid is 0.2587 M .
Answer:
Sr-84 + He-2 -> Na-25 + Pm-61
Explanation:
Answer:
65.18% is the percent yield for this reaction.
Explanation:
Moles of salicyclic acid =
According to reaction 1 mole of salicyclic acid gives 1 mole of aspirin .
Then 0.01449 mole of salicylic acid will give :
of asprin
Mass of 0.01449 moles of aspirin :
= 0.01449 mol × 180 g/mol = 2.6082 g
Theoretical yield of aspirin = 2.6082 g
Experimental yield of aspirin = 1.7 g
The percent yield for this reaction:
65.18% is the percent yield for this reaction.