Chemistry, 24.12.2019 19:31 tajonae04

You have two perfectly insulated cups. one contains water and the other contains an equal volume of another liquid that has half the density of water and twice the specific heat capacity. you heat the water from 10ºc to 20ºc and other liquid from 80ºc to 90ºc. compare the amount of heat energy needed to raise the temperature of the other liquid to the amount needed to raise the temperature of the water.

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 01:20

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Answers: 2

Answer

Chemistry, 22.06.2019 07:30

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

Answers: 2

Answer

Chemistry, 22.06.2019 10:20

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

Answers: 3

Answer

Chemistry, 22.06.2019 15:10

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Answers: 2

Answer

You know the right answer?

You have two perfectly insulated cups. one contains water and the other contains an equal volume of...

Questions