Answer:
Energy
Explanation:
The heat required to change the phase of a substance is given by the equation:
Q= mL (Q= Heat required, m= mass, L= Latent Heat of Fusion/Evaporation/Anything else).
So, according to your values:
Q= 3.0 kg x 333 kJ/Kg
So, Q= 999 kJ
Answer:
The correct answer is: 491.2 g AgCl
Explanation:
The balanced chemical equation for the reaction between AgNO₃ and NaCl is the following:
AgNO₃(aq) + NaCl(aq) ⇒ AgCl(s) + NaNO₃(aq)
From the products, <em>silver chloride (AgCl) is an insoluble salt</em>, so it will precipitate as is formed. Moreover, from the balanced equation we can see that 1 mol AgCl is obtained from 1 mol AgNO₃:
1 mol AgCl = 107.8 g + 35.4 g = 143.2 g
1 mol AgNO₃= 107.8 g + 14 g + (3 x 16 g) = 169.8 g
Thus, we have a stoichiometric ratio of 143.2 g AgCl/169.8 g AgNO₃. From the reaction of 582.4 g AgNO₃, the following mass of AgCl will be formed:
582.4 g AgNO₃ x 143.2 g AgCl/169.8 g AgNO₃ = 491.2 g AgCl
Answer:
302.8K
Explanation:
Using Charles law equation;
V1/T1 = V2/T2
Where;
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information provided in this question;
V1 = 545L
V2 = 550L
T1 = 27°C = 27 + 273 = 300K
T2 = ?
Using V1/T1 = V2/T2
545/300 = 550/T2
1.82 = 550/T2
Cross multiply
1.82 T2 = 550
T2 = 550/1.82
T2 = 302.8K
Answer:
Concentration for the solution is 0.153 mol/L
Explanation:
Formula for the osmotic pressure is π = M . R . T . i
where M is molarity (concentration), R the universal constant for gases and T is Absolute T° (T°C + 273)
π = Osmotic pressure.
Let's replace the data given:
3.9 atm = M . 0.082L.atm/mol.K . 310K
3.9 atm / 0.082 mol.K/L.atm . 310K = 0.153 mol/L (M)
i = Van't Hoff factor (ions from the solute dissolved in solution)
In this case, we assumed no ion pairing, so i = 1
Answer:
5 would be the large intestine
Explanation:
