Chemistry, 14.09.2021 09:30 hannaho8714
How much energy is released when 38,4 g of liquid benzene is cooled from 73.0°C to 15.0°C? (Cs=1.73J/gC)
32.2 kJ
0.996 kJ
4.85 kJ
49.3 kJ
3.85 kJ
Answers: 3
Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 22:30
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.
Answers: 1
Chemistry, 22.06.2019 23:00
What extra step distinguishes fermentation from glycolysis
Answers: 1
Chemistry, 23.06.2019 00:20
Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.
Answers: 1
How much energy is released when 38,4 g of liquid benzene is cooled from 73.0°C to 15.0°C? (Cs=1.73J...
Mathematics, 10.02.2021 21:40
Mathematics, 10.02.2021 21:40
English, 10.02.2021 21:40
Chemistry, 10.02.2021 21:40
History, 10.02.2021 21:40
Mathematics, 10.02.2021 21:40
Health, 10.02.2021 21:40
Business, 10.02.2021 21:40
Mathematics, 10.02.2021 21:40
Mathematics, 10.02.2021 21:40