The electric field strength between the plates of a simple air capacitor is equal to the voltage across the plates divided by the distance between them. when a voltage of 112 v is put across the plates of such a capacitor an electric field strength of 1.1 kv/cm is measured. write an equation that will let you calculate the distance d between the plates. your equation should contain only symbols. be sure you define each symbol

Explanation:

The electric field strength between the plates of a parallel plate capacitor is given by:

where

V is the potential difference

d is the distance between the plates

If we re-arrange the formula, we find a new equation that lets us calculate d:

We can at this point substitute the values:

V = 112 V

E = 1.1 kV/cm = 1100 V/cm = 110,000 V/m

To find the distance:

an enlarged virtual image

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂