The smell, the color change , change in temperature, it bubbles and it turns into a solid
Answer: 10 moles/kg.
Explanation:
Given, Mass of solute = 24.2 g
Molar mass of solute = 24.2 g/mol
Mass of solvent = 100.0g = 0.1 kg [1 g=0.001 kg]
Hence, the molality of the resulting solution is 10 moles/kg.
Thermal expansion because heating something causes the object to expand. <span />
Answer:
potassium chloride reacts with lead nitrate.
Explanation:
According to solubility rule-
(1) All salts containing nitrate ions (
) are soluble.
(2) All salts containing halide ions (
) are soluble except halides of 
.
Hence aqueous solution of potassium chloride (
) reacts with lead nitrate (
) to produce insoluble precipitate of lead chloride (
)
Balanced reaction: 
So potassium chloride reacts with lead nitrate.
Answer:
Mass of KOH = 497.78 g
Explanation:
Given data
mass of KOH = ?
number of KOH molecules = 5.34 × 10²⁴
molar mass of KOH = 56.12 g/mol
Solution
1st we find out the number of moles of KOH
<em>number of moles = number of molecules given / Avogadro number
</em>
number of moles of KOH = 5.34 × 10²⁴ / 6.022 × 10²³
number of moles of KOH = 8.87 mol
Now we find out the mass of KOH
<em>Mass of KOH = moles × molar mass</em>
Mass of KOH = 8.87 mol × 56.12 g/mol
Mass of KOH = 497.78 g
