Original stock concentration of NaOH (aq): 10.0M Volume of stock used (ml): 100ml
Use MiV1 = M2V2 to calculate concentration of Working NaOH solution (M): 10.0M
HCl(aq) + NaOH(aq) NaCl(aq) + H2O(1)
Trial 1
Trial 2
20.000ml
20.000ml
Volume of Unknown acid
before addition of
phenolphthalein (ml
Volume of Unknown acid after
addition of phenolphthalein
(ml)
Volume of Unknown acid +
volume of NaOH at endpoint
(ml)
21.000ml
21.070ml
I
32.00ml
32.570mL
From this information you have collected and calculated, calculate the molarity of the HCl solution.
Report all values in this table below.
Trial 1
100ml
Trial 2
100ml
Volume of NaOH added (ml)
Mol of NaOH added (mol)
Mol of HCl (mol)
Molarity of HCl solution (M)
Average molarity of HCI solution

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

answer; ///progressive relaxation;