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pogonyaev
2 years ago
14

EXAMPLES OF PURE SUBSTANCES

Chemistry
1 answer:
ser-zykov [4K]2 years ago
3 0

Answer: Water, tin, sulfur, sucrose, salt, and etc.

Explanation: The photo has more examples

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Project scope statement?

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2 years ago
Calculate the molarity of a solution of sodium hydroxide, naoh, if 23.64 ml of this solution is needed to neutralize 0.5632 g of
GuDViN [60]
The  molarity  of  NaOH  needed  is  calculated   as  follows
calculate  the  moles  of  KhC8h4O4

that  is  moles  =  mass/molar  mass  of  KhC8h4O4(204.22 g/mol)

=0.5632g /204.22g/mol=  2.76  x10^-3  moles

write the  equation  for  reaction

khc8h4O4  +  NaOH  ---> KNaC8h4O4  +  H2O

from  the  equation  above  the   reacting  ratio   of   KhC8h4O4  to  NaOh  is  1:1  therefore  the  moles  of  Naoh  is  also  2.76  x10^-3  moles

molarity  of NaOh  =  (moles  of  NaOh /  volume ) x  1000

that  is { (2.76  x10^-3) / 23.64}  x100  =0.117 M
8 0
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The density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as meas
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The density at 1,291 km from the surface of the planet is

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Which one has a greatest mass, one atom of carbon, one atom of hydrogen, or one atom of litium
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