Every compound or element has a fixed number of molecules
per mole. This is given by the Avogadros number which is about 6.022 x 10^23
molecules per mole. Therefore:
molecules = 2.50 moles * (6.022 x 10^23 molecules / mole)
<span>molecules = 1.5055 x 10^24 molecules of SO2</span>
The answer is no. <u>5 grams are equal to 5 milligrams</u>.
"Milli" means million so a <u>milli</u>gram is one-<u>milli</u>onth of a gram.
Answer: Evaporation Condensation is used to seperate the parts of a mixture
Explanation: This is because it is the first order of the distilation process
Answer:
In chemistry, pH (/piːˈeɪtʃ/) (abbr. power of hydrogen or potential for hydrogen) is a scale used to specify how acidic or basic a water-based solution is. Acidic solutions have a lower pH, while basic solutions have a higher pH.
Explanation:
that should answer ur question
Answer:
2. All the naturally occurring isotopes of Mg.
Explanation:
You want to know the atomic mass of the magnesium you use in the lab. That’s “natural” magnesium. So, you must use the weighted average of all the naturally occurring isotopes in natural Mg.
1. and 3. are <em>wrong</em>. You won’t get the correct mass for natural Mg if you use only the artificial isotopes for your calculation.
4. is <em>wrong</em>. You must use all the naturally occurring isotopes. The two most abundant isotopes of Mg account for only 90 % of the atoms. If you ignore the other 10 %, your calculation will be wrong.
