Answer:
5.01 *10^(-4) M
Explanation:
pH = - log[H₃O⁺]
[H₃O⁺] = 10^(-pH)= 10^(-3.30) = 5.01 *10^(-4) M
False, air movement as no control over how quickly it occurs
<span>6.0221409e+23 - Google calculator.
for more information I would recomend watching this khan academy video for help :)
https://www.khanacademy.org/science/health-and-medicine/lab-values/v/the-mole-and-avogadro-s-number
</span>
Answer: 0.035 moles FeF3 or 3.5x10-² moles FeF3
Explanation: 1 mole of FeF3 is equal to its molar mass ( 113g FeF3)
4.0g FeF3 x 1 mole FeF3 / 113 g FeF3 = 0.035 moles of FeF3
