An 0.648 g sample of isobutene contains 0.556g of carbonand the rest is hydrogen. 0.5 mol of isobutene has a mass of 28.5g. what is the empirical formula and molecular formula?

Which method is the typical first step when scientists communicate their scientific results?

A quantity of 4.00? 102 ml of 0.600 m hno3 is mixed with 4.00? 102 ml of 0.300 m ba (oh) 2 in a constant-pressure calorimeter of negligible heat capacity. the initial temperature of both solutions is the same at 16.91°c.

A 455 g piece of bopper tubing is heated to 89.5 C and placed in an insulated vessel containing 159 g of water at 22.8 C. Assuming no loss of water and a heat capacity of 10. J/K for the vessel, what is the final temperature (c of copper = 0.

Which is the most important value of a graph

In a chemical reaction, 12 grams of sodium must combine with how many grams of chlorine to produce 30 grams of table salt?

What do Lewis dot structures show?

300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.

What element has the electron arrangement 2,8,4?

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO