The alcohol content of hard liquor is normally given in terms of the "proof," which is defined as twice the percentage by volume of ethanol (c2h5oh) present. calculate the number of grams of alcohol present in 1.00 l of 48-proof gin. the density of ethanol is 0.798 g/ml.

m C2H5OH = 191.52 g

Explanation:

∴ %v/v C2H5OH = ( v C2H5OH / v sln)×100

⇒ 48 proof = (2) (%v/v C2H5OH)

⇒ 48/2 = %v/v C2H5OH

⇒ 24 = %v/v C2H5OH

⇒ 24/100 = v C2H5OH / v sln = 0.24

∴ v sln (gin) = 1.00 L

⇒ v C2H5OH = ( 0.24 )( 1.00 L )

⇒ v C2H5OH = 0.24 L = 240 mL

⇒ m C2H5OH = (240 mL)(0.798 g/mL)

⇒ m C2H5OH = 191.52 g

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.