Chemistry, 18.11.2019 00:31 chriscook4471
Becky is preparing tea. when the water for the tea boils, she pours it in a cup of cold milk. assuming that the system is closed and that thermal energy distribution is uniform when the hot water mixes with the cold milk, which of the following is true about the thermal energy of each of the liquids in the cup?
a. the thermal energy lost by the hot liquid will be equal to the thermal energy gained by the cold liquid.
b. the thermal energy lost by the hot liquid will be more than the thermal energy gained by the cold liquid.
c. the thermal energy lost by the hot liquid will be less than the thermal energy gained by the cold liquid.
d. a transfer of thermal energy will not occur between the liquids because the system is closed.
Answers: 2
Chemistry, 22.06.2019 10:30
If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5
Answers: 1
Chemistry, 22.06.2019 16:40
Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg
Answers: 3
Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
Becky is preparing tea. when the water for the tea boils, she pours it in a cup of cold milk. assumi...
Spanish, 20.01.2021 01:00
Mathematics, 20.01.2021 01:00
English, 20.01.2021 01:00
Mathematics, 20.01.2021 01:00
Mathematics, 20.01.2021 01:00
Social Studies, 20.01.2021 01:00
Biology, 20.01.2021 01:00
Mathematics, 20.01.2021 01:00
Biology, 20.01.2021 01:00