How many kilpgrams are in 2.71x10^22 molecules of CO2

mass of 1 molecule of CO2=44 g

mass of 2.71*10^22 of CO2=2.71*10^22*44=1.2*10^24g

now to convert grams into kilogram we know that

1000 g=1kg

1.2*10^24=1.2*10^24/1000=1.2*10^21

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.