Cyclobutane decomposes to ethylene according to the equation: C4H8(g) → 2C2H4(g). Determine the value of the rate constant for the reaction based on the following pressures, which were recorded when the reaction was carried out at 430°C in a constant-volume vessel.

Time, s Pc4h8 (mm Hg) ln P
0 400
2000 316
4000 248
6000 196
8000 155
10000 122

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.

What is formed when amino acids form long chains or polymerize