AGNO3 (s) ----> Ag^+ (aq) + NO3^- (aq) { inorganic reaction }
the dissolution process is endothermic ( absorb energy ) , the crystallization process is exothermic ( release energy )
the temperature will go down and feel cool as the solute dissolves
the rate of crystallization and rate of dissolution will be equal or the same at equilibrium. the rate of dissolution will initially increase , because the process needs to absorb energy to occur , by heating the solution energy is added and the solubility of the solute will decreases more silver nitrate .
Answer:
0.0152
0.0000000778
Explanation:
You just need to more the decimal as many times as the exponent to the to the left if it is negativa and to the right if it is positive.
Answer:
that the second one surely represent the beta particle
Answer:
0.18 moles
Explanation:
Applying,
PV = nRT................... Equation 1
Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = temperature.
make n the subject of the equation
n = PV/RT............... Equation 2
Given: V = 5.3 L, T = 22 °C = (22+272) K = 295 K, P = 632 mmHg = (0.00131579×632) = 0.8316 atm, R = 0.083 L.atm/K.mol
Substitute these values into equation 2
n = (0.8316×5.3)/(0.083×295)
n = 0.18 moles