Answer:
Endothermic
Explanation:
This would be an endothermic reaction, due to the fact that the water would be signifigantly warmer then the ice cube, which causes it to melt.
The new concentration of the KCl solution after mixing 1 L new volume is 0.28 M.
<h3>How do we calculate the concentration?</h3>
Concentration in terms of molarity will be calculated by using the below equation as:
M₁V₁ = M₂V₂, where
M₁ = molarity of old KCl solution = 1.6 M
V₁ = volume of old KCl solution = 175 mL = 0.175 L
M₂ = molarity of new KCl solution = ?
V₂ = volume of new KCl solution = 1 L
On putting all these values on the above equation, we get
M₂ = (1.6)(0.175) / (1) = 0.28 M
Hence resultant concentration is 0.28 M.
To know more about molarity, visit the below link:
brainly.com/question/24305514
An atom has an average atomic mass of about 63.5 amu.
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1 amu is equal to 1 gram per mole
so 63.5 amu is just equal to 63.5 grams per mole or 63.5 g/mol
the answer is Cu or copper.
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Answer:
Hấp thụ hoàn toàn 0,896 lít khí CO2 (đktc) cần dùng 500ml dd Ba(OH)2, thu được m gam kết tủa.
a) Viết PTHH của phản ứng xảy ra.
b) Tính giá trị của m.
c) Tính nồng độ mol của dung dịch Ba(OH)2 đã dùng.
