Let's write the equation
According to law of conservation of mass .
- Mass of products=Mass of reactants
Let required value be x
Answer:
55.75g
Explanation:
From
m/M = CV
Where
m= required mass of solute
M= molar mass of solute
C= concentration of solution
V= volume of solution=675ml
Molar mass of solute= 3(23) + 31 + 4(16)= 69+31+64=164gmol-1
Number of moles of sodium ions present= 1.5× 675/1000= 1.01 moles
Since 1 mole of Na3PO4 contains 3 moles of Na+
It implies that 1.01/3 moles of Na3PO4 are present in solution= 0.34moles
mass of Na3PO4= number of moles × molar mass= 0.34 × 164 =55.75g
The answer is head-to-tail joining of monomers. Monomer used in condensation have two functional groups that combine to form amide and ester linkages. When this reaction occurs, water molecules is removed and that is why it is called a condensation reaction.
This type of energy travels through vibrations on waves = 7. sound energy
This is the energy found in the nucleus of an atom = 9. nuclear energy
This type of energy can be transferred in three different ways = 6. thermal energy
This is the term used when energy changes from one form to another = 10. energy conversions
This has to do with the speed of an object and how much mass it has = 2. kinetic energy
This can be either kinetic or potential and has to do with the energy of position and motion of an object = 1. mechanical energy
This type of energy is stored energy = 3. potential energy
This is radiant energy from the sun = 5. light energy
This is energy that is transferred by the movement of electrons through a conductor = 4. electrical energy
This type of energy is often found in things like batteries or food = 8. chemical energy
hope this helps
Answer:
The cubic centimeter of boron is 2.
Explanation:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Given data:
mass of boron = 4.68 g
density of boron = 2.34 g/cm³
volume = ? (cm³)
Solution:
d = m/ v
v = m/d
v = 4.68 g/ 2.34 g /cm³
v = 2 cm³
