Question

Рассчитайте массовую долю корбаната натрия и сульфата серебра

Answer 1

Na2CO3

M (Na2CO3) = 46 + 12 + 48 = 106 г/моль
масс. доля Na = 46 / 106 • 100% = 43,4%
масс. доля C = 12 / 106 • 100% = 11,3%
масс. доля O = 48 / 106 • 100% = 45,3%

Ag2SO4

M (Ag2SO4) = 108 • 2 + 32 + 64 = 312 г/моль
масс. доля Ag = 216 / 312 • 100% = 69,2%
масс. доля S = 32 / 312 • 100% = 10,3%
масс. доля O = 64 / 312 • 100% = 20,5%

Answer 2

Mr(Na2CO3) = 2*23+12+3*16= 106
W(Na)= 46/106= 0.43=43%
W(C)=12/106=0.11=11%
W(O)=48/106=0.46=46%

Mr(Ag2SO4)=2*108+32+4*16=312
W(Ag)=216/312=0.69=69%
W(S)=32/312=0.10=10%
W(O) = 64/312=0.21=21%

Answer 3

Calculating the Mass Fraction of Sodium Carbonate and Silver Sulfate

To calculate the mass fraction of sodium carbonate and silver sulfate, we can use the following information:

- Sodium carbonate is represented as Na2CO3. - Silver sulfate is represented as Ag2SO4.

The mass fraction of a component in a mixture is the ratio of the mass of that component to the total mass of the mixture.

Calculation:

The mass fraction (w) of a component can be calculated using the formula: \[ w = \frac{m}{M} \times 100\% \] Where: - \( m \) = mass of the component - \( M \) = total mass of the mixture

Sodium Carbonate (Na2CO3):

From the provided information, we don't have the specific mass of sodium carbonate or the total mass of the mixture to directly calculate the mass fraction of sodium carbonate.

Silver Sulfate (Ag2SO4):

Similarly, we don't have the specific mass of silver sulfate or the total mass of the mixture to directly calculate the mass fraction of silver sulfate.

Given the limited information provided, it's not possible to calculate the mass fraction of sodium carbonate and silver sulfate without the specific mass of each component and the total mass of the mixture.

If you have additional specific information about the mass of each component and the total mass of the mixture, please provide it, and I can help you calculate the mass fractions accordingly.