Explanation:
First, we need to calculate the number of moles of sodium carbonate we have in a 25 g sample. To calculate this, we will
find the molar mass of sodium carbonate (Na2CO3):
⇒ 2 × Molar mass of sodium + Molar mass of carbon + 3×molar mass of oxygen
⇒ 2 × 23 + 12 + 3 × 16
⇒ 46 + 12 + 48
⇒ 106g/mol
Thus, the molar mass of Na2CO3 is 106g/mol.
Therefore, number of moles = 25 ÷ 106
=> 0.2358 mol
Now, we know that every mole of Na2CO3 have 0.2358 moles of Na+ ions. Hence, total moles of Na2CO3 is 0.4716 moles
Number of ions present = 6.022 × 1023 × 0.4716 mol = 2.84 × 1023ions
In a rate law constant K(kt), Depends only on Temperature.
Answer: would be Temperature, if temperature is constant, then rate law is constant.
Hope that helps!!!
it will sink
Explanation:
the solid iron will sink because it is dense than the liquid iron I will sink and it will melt
If your wanting to know less of the time:
70
250
Answer: The answer is Net Forces.
Net force is the vector sum of forces acting on a particle or body.
Have a great day!
