Answer:
The molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate into 355 mL of water is 0.9881M
Molarity of solution is the ratio of the number of moles of the substance to the volume.
n is the number of moles of the compound
Mass of calcium nitrate = 54.3g
Molar mass of calcium nitrate = Ca(NO₃)₂ = 164.088 g/mol
Get the required molarity;
Hence the molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate into 355 mL of water is 0.9881M
Explanation:
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B is correct. Trust yourself.
Consius :-Consciousness, at its simplest, is sentience or awareness of internal and external existence. Despite millennia of analyses, definitions, explanations and debates by philosophers and scientists,
Non-consious / unconscious :- the unconscious mind is defined as a reservoir of feelings, thoughts, urges, and memories that outside of conscious awareness.
Sub Consious :- the subconscious is the part of the mind that is not currently of focal awareness
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Answer:
490 Joule
Explanation:
Solution:
Given,
- Mass (m) = 5 kg
- Acceleration due to gravity= 9.8 m/s
- Height (h)= 10 m
Here,
Potential Energy (P.E.)= mgh
=5×9.8×10
= 490 Joule
