3 years ago

What is the total number of atoms in this formula? NaHCO3

Chemistry

1 answer:

Pavel [41]3 years ago

7 0

6 - one sodium atom, 1 hydrogen atom, 1 carbon atom, and 3 oxygen atoms.

You might be interested in

Un recipiente cerrado, de 4,25 L, con tapa móvil, contiene H2S(g) a 740 Torr y 50,0°C. Se introduce en ese recipiente N2(g) a te

yulyashka [42]

Answer:

$n_{N_2}=6.41mol$

Explanation:

¡Hola!

En este caso, teniendo en cuenta la información dada por el problema, inferimos que primero se debe usar la ecuación del gas ideal con el fin de calcular las moles de gas que se encuentran al inicio del experimento:

$PV=nRT\\\\n=\frac{RT}{PV} \\\\n=\frac{0.08206\frac{atm*L}{mol*K}*(50.0+273.15)K}{740/760atm*4.25L}\\\\n=6.41mol$

Seguidamente, usamos la ley de Avogadro para calcular las moles finales, teniendo el cuenta que el volumen final es el doble del inicial (8.50 L):

$n_2=\frac{6.41mol*8.50L}{4.25L}\\\\n_2=12.82mol$

Quiere decir que las moles de N2(g) que se agregaron son:

$n_{N_2}=12.81mol-6.41mol\\\\n_{N_2}=6.41mol$

¡Saludos!

8 0

3 years ago

Which part of a calcium atom in the ground state is represented by the dots in its Lewis electron-dot diagram?

g100num [7]

Answer:

There are two dots are present on the left side of calcium atom which represents the unpaired electrons present in the outermost shell. This structure is presented by Lewis in order to show the number of unpaired electrons in the atom.

Explanation:

8 0

3 years ago

Why series fatty acid carbons seen in double from?

BARSIC [14]

Stearic acid is a fully saturated fatty acid with no carbon-carbon double bonds. (Bottom) Oleic acid is an unsaturated fatty acid.

8 0

2 years ago

The anticodon is the three-base code on the tRNA molecule that binds to the codon on mRNA. What is the associated codon for the

neonofarm [45]

It is AAU
A-U
U-A
C-G
G-C

5 0