Answer:
The value is 
Explanation:
From the question we are told that
The bond length is 
The bond dipole moment is 
Generally the dipole moment is mathematically represented as
Here Q is the partial negative charge on the bromine atom
So
=> 
=> 
Generally
1 electronic charge(e) is equivalent to 
So x electronic charge(e) is equivalent to
=> 
=>
Use the volume and density of the gold statue to calculate the mass of the statue.
density = mass / volume, or rearranged, mass = density • volume
Convert the volume of the statue from L to mL so volume unit agrees with density unit
mass of statue = 19.3 g/mL • 1000 mL = 19 300 g
Mass of sand must be same as the mass of the statue, 19 300 g
Use the mass and density of the sand to calculate the volume of sand needed
density = mass / volume, or rearranged, volume = mass / density
volume of sand needed = 19 300 g / 23 g/mL = 8391 mL or 8.391 L
1b
Calculate the density of the statue from the measured mass and volume. If the calculated density agrees with the known density of gold, then the statue is made from pure gold.
density = mass / volume
Convert the mass from kg to g as you want the answer in g/mL so you can compare it to the reference value of gold given in the problem. 16.5 kg • 1000 g / 1 kg = 16 500 g
density of the statue = 16 500 g / 954 mL = 17.3 g/mL
Since this density, 17.3 g/mL is significantly different from the known density of gold, 19.3 g/mL, the statue cannot be made of pure gold. The gold was mixed with a less dense metal.
Explanation:
during the daytime just complete your lessons of biology, during the midday timechemistry or study it in evening, at night physics and just try to complete those chapters that are difficult for you and the easier one you could do at last simple and take Sunday as a day for revision...
Give 2hrs, 1hr each chapter...
Filtration can be used to separate mixtures based on the size of their particle.
Filtration is a method to separate different molecule based on size. Filtration mostly used to separate solid substance in a liquid. To separate the molecule, you will need a tools that have smaller holes than the molecule size.
The example of usage of this method would be when you try to remove a substance from homogeneous solution using filter paper. The size of water molecule will be smaller than the paper so the water can pass through. But if the solute size is larger than the paper pore, it will be held and form a residue.
Answer:D
Explanation:
options A-C has the option pepsi which is an enzyme that is active in the stomach with a PH of 2.
