To titrate 15.00 milliliters of an unknown HCl sample, use 25.00 milliliters of a standard 0.2000 M NaOH titrant. What is the molarity of the HCl
Answers
Answer:
Molarity of HCl = 0.3333M
Explanation:
Given:
Volume of HCl = 15.00 ml
Volume of NaOH = 25.00 ml
Molarity of NaOH = 0.2000 M
To determine:
Molarity of HCl
Explanation:
The titration reaction is:
Based on the reaction stoichiometry:
1 mole of HCl reacts with 1 mole of NaOH to form 1 mole of NaCl and water.
Therefore the molar ratio of HCl:NaOH = 1:1
Moles of NaOH consumed = Moles of HCl present = 0.005 moles
HCl+NaOH -> NaCl + H2O
1:1 ratio
M1=Molarity of HCl = X
V1 = Volume of HCl = 15mL = 0.015L
M2 = Molarity of NaOH = 0.2M
V2 = Volume of NaOh = 25mL = 0.025L
(XM)(0.015L)=(0.2M)(0.025L)
Isolate unknown:
(XM)=[(0.2M)(0.025L)/(0.015L)]
XM=0.33M
Hence, Molarity of HCl is = 0.33 Moles
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To solve this problem convert the units first from meter and yards to miles. 100 metes is 0.0621371mi and 100 yards is 0.0568182 yard. 9.69s = 0.002691667 hr and 9.21s = 0.002558333
A.) 23mi/hr
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Answer:
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B) The speed of the runner is 22.209 mile/hr.
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Speed of the runner =
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c. Sodium
b. Chromium
d. Iron
Answers
B) The covalent N-glycosidic bond between the base and the pentose breaks.
C) The helical structure unwinds.
D) The hydrogen bonds between A and T break.
E) The viscosity of the solution decreases.
Answers
Answer:
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Explanation:
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Answers
Answer:
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Explanation:
speed =distance over time