We are going to use Avogadro's constant to calculate how many molecules of
carbons dioxide exist in lungs:
when 1 mole of CO2 has 6.02 x 10^23 molecules, so how many molecules in
CO2 when the number of moles is 5 x 10^-2
number of molecules = moles of CO2 * Avogadro's number
= 5 x 10^-2 * 6.02 x 10^23
= 3 x 10^22 molecules
∴ There are 3 x 10^22 molecules in CO2 exist in lungs
Answer:
The scientist is referring to the unusually slow growth rate of carbon dioxide occurring recently. As that slow growth rate ends, the rate of increase of carbon dioxide in the atmosphere should go up soon.
Explanation:This is the exact answer so switch it up.
Answer:
ionic, they would make an ion
Explanation:
Answer:
1 is c 2 is b
Explanation:
because atomic number is the number of protons in a nucleus
2..because the number of protons plus number of neutrons is equal to mass number.
Answer:
3.25 × 10²⁴ molecules of water
Explanation:
Step 1: Write the balanced equation
3 PbO + 2 NH₃ → 3 Pb + N₂ + 3 H₂O
Step 2: Calculate the moles of water formed from 3.60 moles of ammonia
The molar ratio of NH₃ to H₂O is 2:3. The moles of water formed are 3/2 × 3.60 mol = 5.40 mol
Step 3: Calculate the molecules in 5.40 moles of water
We will use Avogadro's number: 6.022 × 10²³ molecules/mol.
5.40 mol × 6.022 × 10²³ molecules/mol = 3.25 × 10²⁴ molecules
