A Scottish scientist Graham, Thomas formulated Graham's law of effusion or simply Graham's law. This law states that rate of gas 1 over gas 2 is equal to the square root of the molar mass of gas 2 over <span>he square root of the molar mass of gas 1. Since the molar mass of Neon is 4, the answer is then 8.16 g/mol</span>
Hey...
Use the molarity formula
M=moles/L and then convert to grams
0.07268*0.15=moles
<span>0.010902 mol
</span>Pb(NO3)2
1 mole=331.22g
0.010902 moles=
3.61 g
Answer:
About 3.5 kJ.
Explanation:
Recall the heat transfer equation:
Where <em>q</em> is the heat; <em>m</em> is the mass of the substance; <em>C</em> is its specific heat; and Δ<em>T</em> is the change in temperature.
The given specific heat of iron is 462 J/kg -°C.
Substitute and evaluate. Ensure correct units:
Therefore, the block of iron absorbed about 3.5 kJ of heat.
It proved that there was a nucleus composed of smaller, subatomic particles, or protons and neutrons.<span />
Answer:
grams of mercury(I) chloride are needed to saturate of water .
Explanation:
S 2S
Solubility product of mercury (I) chloride=
The expression of solubility product is given as:
Volume of water V =
Moles of mercury(I) chloride in solution= n
Mass of n moles of mercury(I) chloride: m
grams of mercury(I) chloride are needed to saturate of water .