Americans combined drive about 4.0 x 109 kilometers a day and get an average of 20 miles per gallon of gasoline. for each kilogram of gasoline that is burned about 3 kg of carbon dioxide (co2) are produced. with the density of gasoline as 0.93 g/cm3, how many kg of co2 are emitted by u. s. cars into the atmosphere each minute? (1 gallon = 3.7854 l, 1 mile = 1.609 km)

a. 9.12 x 105 kg co2/min
b. 5.47 x 107 kg co2/min
c. 4.7 x 109 kg co2/min
d. 4.38 x 106 kg co2/min

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.