How many molecules of CO2 are contained in a 10.0 L tank at 7.53 atm and 485 K?
5.69 × 1023 molecules
1.14 × 1024 molecules
4.89 × 1024 molecules
3.30 × 1024 molecules
2.28 × 1024 molecules

PV=nRT

Explanation:find n which are moles and then multiply Avogadro number with moles to get your answer

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.