Answer:
plasma flows but is a solid
Explanation:
example toothpaste flows but is a solid
<span>in the top part of the lungs.</span>
Answer:
The volume of carbon dioxide gas generated 468 mL.
Explanation:
The percent by mass of bicarbonate in a certain Alka-Seltzer = 32.5%
Mass of tablet = 3.45 g
Mass of bicarbonate =![3.45 g\times \frac{32.5}{100}=1.121 mol](https://tex.z-dn.net/?f=3.45%20g%5Ctimes%20%5Cfrac%7B32.5%7D%7B100%7D%3D1.121%20mol)
Moles of bicarbonate ion = ![\frac{1.121 g/mol}{61 g/mol}=0.01840 mol](https://tex.z-dn.net/?f=%5Cfrac%7B1.121%20g%2Fmol%7D%7B61%20g%2Fmol%7D%3D0.01840%20mol)
![HCO_3^{-}(aq)+HCl(aq)\rightarrow H_2O(l)+CO_2(g)+Cl^-(aq)](https://tex.z-dn.net/?f=HCO_3%5E%7B-%7D%28aq%29%2BHCl%28aq%29%5Crightarrow%20H_2O%28l%29%2BCO_2%28g%29%2BCl%5E-%28aq%29)
According to reaction, 1 mole of bicarbonate ion gives with 1 mole of carbon dioxide gas , then 0.01840 mole of bicarbonate ion will give:
of carbon dioxide gas
Moles of carbon dioxide gas n = 0.01840 mol
Pressure of the carbon dioxide gas = P = 1.00 atm
Temperature of the carbon dioxide gas = T = 37°C = 37+273 K=310 K
Volume of the carbon dioxide gas = V
(ideal gas equation)
![V=\frac{nRT}{P}=\frac{0.01840 mol\times 0.0821 atm L/mol K\times 310 K}{1.00 atm}=0.468 L](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BnRT%7D%7BP%7D%3D%5Cfrac%7B0.01840%20mol%5Ctimes%200.0821%20atm%20L%2Fmol%20K%5Ctimes%20310%20K%7D%7B1.00%20atm%7D%3D0.468%20L)
1 L = 1000 mL
0.468 L =0.468 × 1000 mL = 468 mL
The volume of carbon dioxide gas generated 468 mL.
Answer: Noble gases
Explanation:
Electronegativity is the ability of an atom to gain an electron. Noble gases already have 8 electrons, so they don’t need to gain electrons. If they don’t gain electrons, it has no electronegativity.