Answer:
T₁ = 135.41 K
Explanation:
Given data:
Initial pressure = 1.12 atm
Finial temperature = 36.5 °C (36.5 +273 = 309.5 K)
Initial temperature = ?
Final pressure = 2.56 atm
Formula:
P₁/T₁ = P₂/T₂
P₁ = Initial pressure
T₁ = Initial temperature
P₂ = Final pressure
T₂ = Final temperature
Solution:
P₁/T₁ = P₂/T₂
T₁ = P₁T₂ /P₂
T₁ = 1.12 atm × 309.5 K / 2.56 atm
T₁ = 346.64 atm . K / 2.56 atm
T₁ = 135.41 K
Answer:
75mL
Explanation:
Data obtained from the question include:
C1 = 2M
V1 =?
C2 = 0.60M
V2 = 250mL
The original volume of solution can be obtained as follows:
C1V1 = C2V2
2 x V1 = 0.6 x 250
Divide both side by 2
V1 = (0.6 x 250) / 2
V1 = 75mL
The volume needed is 75mL
Answer is: ionic bond.
Ionic bond is the electrostatic attraction between oppositely charged ions, cations (positive ions) and anions (negative ions).
For example compound magnesium chloride (MgCl₂) has ionic bond. Magnesium transfers two electrons, form positive cation Mg²⁺, to chlorine, form anion Cl⁻.
Another example, potassium bromide (KBr) is ionic solid, it has ionic bonds.
force
speed
position
Answer:
Velocity
Explanation:
The change of velocity rate it's the definition of acceleration.
While increasing or decreasing velocity, it means that an acceleration it's happening.
Using some math:
This can be read as "the acceleration it's equal to te variation of velocity with respect to time"