When the following equation is balanced, the coefficient of H3PO4 is ________. H3PO4 (aq) + NaOH (aq) → Na3PO4 (aq) + H2O (l)

Chemistry

1 answer:

ella [17]3 years ago

7 0

Answer:

The coefficient of H3PO4 is 1

Explanation:

The equation is H3PO4(aq) + NaOH (aq) → Na3PO4(aq) + H2O (l)

To balance the reaction, we first balance the Na atoms: On the right there are 3 Na atoms, so on the left we multiply NaOH by 3

The number of P atoms on the left is 1, the number of the P atoms on the right is also 1. So, this is already balanced.

On the left there are 6 H atoms, on the right we have 2H atoms, so e have to multiply H2O by 3.

On the left we have 7 O atoms, on the right, now we have also 7O atoms.

So this is already balanced.

The fully balanced reaction is H3PO4 (aq) + 3NaOH(aq) → Na3PO4(aq) + 3H2O(l)

The coefficient of H3PO4 is 1

You might be interested in

Calculate the pH of 0.50M H2S

-BARSIC- [3]

I got that pH=3.65 using the fact that Ka=[H⁺][A⁻]/[HA] at equilibrium. In the ice table, I stands for initial, C stands for change, and E stands for equilibrium.

I hope this helps. Let me know if anything is unclear.

5 0

3 years ago

Calculate the number of moles of an ideal gas if it occupies 1750 dm3 under 125,000 pa at a temperature of 127 c. a. 0.21 moles

labwork [276]

The number of mole will be 65.81 mole.

An ideal gas would be one for which both the overall volume of the molecules and even the forces that exist between them are so negligible as to have no influence on the behavior of something like the gas.

Number of ideal gas can be calculated by using the formula:

PV = nRT

where, p is pressure, n is number of mole, R is gas constant and T is temperature.

Given data:

V= 1750 $dm^{3}$ = 1750 L

P = 125,000 p = 1.2 atm

R = 0.082 L /mole kelvin

T = 273+127 = 400 K

Now, put the value of given data in above equation.

1.23atm x 1750L = n x 0.0820atm x Liter/ mole x kelvin x 400K

n = 65.81 mole.

Therefore, the number of mole will be 65.81 mole

To know more about mole

brainly.com/question/21050624

#SPJ4

6 0

2 years ago

If you were able to magnify a penny down to the atomic level, what two

Lena [83]

The two observations you would make about the atoms are

They are made up largely of empty space
Their mass is concentrated at the center called a nucleus

These observations were made by Ernest Rutherford in his model of the atom established in 1911, when he performed his gold foil experiment and observed the scattering angle of the alpha particles which led him to conclude that the mass of the atom was concentrated at the center.

Also, that most of the alpha particles also went through the gold foil suggested that the atom was made up basically of empty space.

So,

The two observations you would make about the atoms are