Answer:
207g
Explanation:
Given compound:
Ca(ClO₃)₂
Equivalent mass is the
The equivalent mass can be derived by summing the molar masses of each atom
Molar mass of Ca = 40
Cl = 35.5
O = 16
Now solve;
Molar mass = 40 + 2(35.5 + 3(16)) = 207g
Answer:
T = 11.4°C
Explanation:
Given that:
weight of solute w (glucose) = 12 g
weight of solvent W (acetic acid) = 50 g
Molar depression constant of solvent (Kf)= 3.90°C/m
Temperature of solvent freezing point T₀ = 16.6°C
Temperature of solution freezing point Tₓ = (T₀ -T) = ???
Molar mass of solute (glucose) = 180.2 g/mol
Using the expression;
(T₀ -T) = 
-T = -16.6 °C + 5.2 °C
- T = -11.4°C
T = 11.4°C
∴ The freezing point of the solution is said to be = 11.4°C
Synthesis, decomposition, single replacement and double replacement.
Synthesis- two or more reactants unite to form a single product
S (Sulfur) + O2 (Oxygen) ——> SO2 (Sulphur dioxide)
Decomposition- A single reactant is decomposed or broken down into two or more
CaCO3 (Calcium Carbonate) ——> CaO (Calcium oxide) + CO2 (Carbon dioxide)
Single replacement- A single free element replaces or is substituted for one of the elements in a compound. The free element is more reactive than the one its replaces.
Zn (Zinc) + 2 HCI (hydrochloric acid) ——> H2 (hydrogen) + ZnCl2 (Zinc Chloride)
Double replacement- This reaction type can be viewed as an "exchange of partners." For ionic compounds, the positive ion in the first compound combines with the negative ion in the second compound, and the positive ion in the second compound combines with the negative ion in the first compound.
HCI (hydrochloric acid) + NaOH (sodium hydroxide) ——> NaCl (Sodium Chloride) + HOH (water)
Once reactants have absorbed enough heat energy from their surroundings to reach the transition state, the reaction will proceed. The activation energy of a particular reaction determines the rate at which it will proceed. The higher the activation energy, the slower the chemical reaction will be.
Answer:
The answer to your question is below
Explanation:
Factors that affect the rate of a chemical reaction
- Temperature If the temperature increases the rate of reaction increases.
- Concentration The reaction will move where there less concentration it could be to the reactants of products.
- Particle size The lower the particle size the higher the rate of reaction.
- Catalyst Catalyzers accelerate the rate of reaction
- Pressure The reaction will move where there are fewer molecules.
Acid more H3O+ than OH-
Base less H3O+ than OH-
