Respuesta :
From the periodic table you get the atomic masses of each element.
These are the values that I have in my periodic table (use those numbers of your periodic table if your teache gave you a specific one)
Na: 23 g/mol
O: 16 g/mol
H: 1 g/mol
C: 12 g/mol
Ca: 40 g/mol
S: 32 g/mol
Mg: 24 g/mol
P: 31 g/mol
Now I will do some examples and you do the others:
1) NaOH: 1 atom of Na * 23 g/mol + 1 atom of O * 16 g/mol + 1 atom of H * 1 g/mol
=> 1*23g/mol + 1*16g/mol + 1*1g/mol = 40 g/mol
2) H2O
=> 2 atoms of H * 1 g/mol + 1 atom of O * 16 g/mol = 2*1g/mol + 1*16g/mol = 18 g/mol
3) Glucose: C6H12O6
6*12 g/mol + 12 * 1g/mol + 6*16 g/mol = 72g/mol + 12g/mol + 96 g/mol = 180 g/mol
4) CaSO4:
1*40 g/mol + 1*32g/mol + 4*16g/mol = 136 g/mol
Now you only have to do the last one by your own.
These are the values that I have in my periodic table (use those numbers of your periodic table if your teache gave you a specific one)
Na: 23 g/mol
O: 16 g/mol
H: 1 g/mol
C: 12 g/mol
Ca: 40 g/mol
S: 32 g/mol
Mg: 24 g/mol
P: 31 g/mol
Now I will do some examples and you do the others:
1) NaOH: 1 atom of Na * 23 g/mol + 1 atom of O * 16 g/mol + 1 atom of H * 1 g/mol
=> 1*23g/mol + 1*16g/mol + 1*1g/mol = 40 g/mol
2) H2O
=> 2 atoms of H * 1 g/mol + 1 atom of O * 16 g/mol = 2*1g/mol + 1*16g/mol = 18 g/mol
3) Glucose: C6H12O6
6*12 g/mol + 12 * 1g/mol + 6*16 g/mol = 72g/mol + 12g/mol + 96 g/mol = 180 g/mol
4) CaSO4:
1*40 g/mol + 1*32g/mol + 4*16g/mol = 136 g/mol
Now you only have to do the last one by your own.
Molar mass is the sum of the atomic mass of the constituent atoms. The molar mass of Sodium hydroxide, water, glucose, Calcium sulfate, and Magnesium phosphate is 40 g/mol, 18g/mol, 180g/mol, 136g/mol and 269.8g/mole respectively.
Molar mass is the mass of 1 mole of atom, ion or molecule. It is measured in g/mol.
In a molecule molar mass is the sum of the atomic mass of the constituent atoms. The atomic mass of the following atoms in the periodic table is
H - 1 g/mol C - 12 g/mol
O -16 g/mol Na- 23 g/mol
Ca - 40 g/mol S - 32 g/mol
Mg - 24 g/mol P - 31 g/mol
The molar mass of Sodium hydroxide
NaOH = 23 + 16+ 1 = 40 g/ mol
The molar mass of water
[tex]\bold{(H_2O)}[/tex] = (2 x 1) + 16 = 18 g/mol
The molar mass of Glucose
[tex]\bold{C_6H_1_2O_6 = (6\times12 )+( 12\times 1 )+( 6\times 16 ) = 180}[/tex]
The molar mass of Calcium sulfate
[tex]\bold {(CaSO_4 = 40 + 32 + 4\times 16 = 136 g/mol}[/tex]
The molar mass of Magnesium phosphate
[tex]\bold{ Mg_3(PO_4)_2 = 3\times 24 + 2( 31 + 4\times16) = 169.8g/mol}[/tex]
Hence, we can conclude that the molar mass of Sodium hydroxide, water, glucose, Calcium sulfate, and Magnesium phosphate is 40 g/mol, 18g/mol, 180g/mol, 136g/mol and 269.8g/mole respectively.
To know more about molar mass, refer the link:
https://brainly.com/question/3658475
