Answer:
Q = 1252.82kJ
Explanation:
Mass = 179g
Initial temperature (T1) = 25°C = (25+273.15)K = 298.15K
Final temperature (T2) = 82.70°C = (82.70 + 273.15)K = 335.85K
Specific heat capacity (c) = 121.3J/g.K
Heat energy (Q) = mc∇T
M = mass of the substance
Q = heat energy
c = specific heat capacity of the substance
∇T = change in temperature of the substance = T2 - T1
Q = mc∇T
Q = 179 × 121.3 × (355.85 - 298.15)
Q = 21712.7 × 57.7
Q = 1,252,822.79
Q = 1252.82kJ
The heat energy required to heat 179g of acetic acid from 25°C to 82.70°C is 1252.82kJ
Answer:
substance A is water and substance B is chlorophyll
Explanation:
Answer:
The answer to your question is letter d. Sr(ClO₃)₂
Explanation:
Data
Reactants HClO₃ and Sr(OH)₂
This is a neutralization reaction because the reactants are a base (Sr(OH)₂) and an acid (HClO₃).
The products in a neutralization reaction are always water and a salt.
Balanced chemical reaction
Sr(OH)₂ + HClO₃ ⇒ H₂O + Sr(ClO₃)₂
Homogenous mixture is a mixture of the "same" , uniform though out. Like mixing salt into water and the salt dissolves.
Heterogenous mixture is a mixture that is not uniform. Like mixing oil and water. You can see the two compounds within the mixture.
The conversion factor for volume at STP is
or \frac {22.4L}{1mol}. Since we want volume, we would use \frac {22.4L}{1mol}. We conclude with the following calculations:
The answer is 44.8L Cl2