Answer:
False
Explanation:
Few organisms were not preserved as well as others, and new fossils are found every day
Answer and Explanation:
Ions are electrically charged particles that are formed from the removing and addition of electrons. It can be a positively or negatively charged atom.
The mass of AgNO₃ present in the given solution will be 5.31grams.
The molality is defined as moles of solute, which in your case is silver nitrate, per kilogram of the solvent. This means that the solution's molality essentially tells about the number of moles of solute present in 1 kg of solvent.
In this case, a 0.250 molal solution would contain 0.250 moles of solute for every 1 kg of solvent. The problem tells that we have 125 g of solvent available. Using the solution's molality as a conversion factor to calculate how many moles of silver nitrate it must contain and we should not forget to convert the mass of solvent from grams to kilograms
Now, we know that silver nitrate has a molar mass of 169.87 g mol⁻¹, which means that the one mole of silver nitrate has a mass of 169.87 g
We can thus say that 0.03125 moles of silver nitrate will have a mass of 0.03125 moles of AgNO₃ × 169.87/ 1 mole of AgNO₃
=5.31g
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Answer:
All Are correct responses