subject

Chemistry, 15.04.2020 20:39 ayoismeisjjjjuan

When 24.68 g KOH is dissolved in 196.7 g of water in a coffee-cup calorimeter, the temperature rises from 20.88 °C to 31.99 °C. What is the enthalpy change per gram of KOH dissolved in the water? Assume that the solution has a specific heat capacity of 4.18 J/g×K.

ansver

Answers: 1

Show answers

Another question on Chemistry

question

Chemistry, 22.06.2019 00:00

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Answers: 1

question

Chemistry, 22.06.2019 05:40

What is the solubility of substance?

Answers: 2

question

Chemistry, 22.06.2019 14:30

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Answers: 1

question

Chemistry, 22.06.2019 14:40

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products

Answers: 2

You know the right answer?

When 24.68 g KOH is dissolved in 196.7 g of water in a coffee-cup calorimeter, the temperature rises...

Questions

question

Physics, 09.08.2019 23:10

Astring with a mass of 8.00 g and a length of 5.00 m has one end attached to a wall; the other end is draped over a pulley and attached to a hanging...

question

History, 09.08.2019 23:10

The eighth century introduced a new age of empires, that lasted well into the first millennium c. e., assyria, babylonia, persia, macedonia and rome t...

question

Business, 09.08.2019 23:10

Skymont company wants an ending inventory each month equal to 30% of that month's cost of goods sold. cost of goods sold for february is projected at...

question

Mathematics, 09.08.2019 23:10

For what value of a is -√a < - 1/-√a 2 ⅓ 1 0...

question

Mathematics, 09.08.2019 23:20

Ineed ! can someone me with congruent fugures with pattie paper?...

question

English, 09.08.2019 23:20

Read what myrna wrote about a hockey game she attended last week. members of both hockey teams were at the top of their game. they had trained hard an...

question

Mathematics, 09.08.2019 23:20

12. dianne is 5 feet and 6 inches tall. manuel is taller than dianne. what inequality represents manuel's height hin feet? recall that there ar...

question

Engineering, 09.08.2019 23:20

When dealing with brake failure, after pumping the brakes and downshifting, gradually apply the parking brake in an attempt to slow your vehicle down...

question

Mathematics, 09.08.2019 23:20

Howmany blue pens should he order ?...

question

Biology, 09.08.2019 23:20

Name two different cellular functions that require energy that parallel human energy-requiring functions....

question

Biology, 09.08.2019 23:20

What is the primary function of carbohydrates attached to the exterior of cell membranes? identification of the cell flexibility of the m...

question

Biology, 09.08.2019 23:20

What is the combination of an electrical gradient and a concentration gradient called? potential gradient electrical potential conc...

question

Biology, 09.08.2019 23:20

In what important way does receptor-mediated endocytosis differ from phagocytosis? it transports only small amounts of fluid. it does not...

question

Biology, 09.08.2019 23:20

Which characteristic of a phospholipid contributes to the fluidity of the membrane? its head cholesterol a saturated fatty acid tai...

question

Biology, 09.08.2019 23:20

Why is it important that there are different types of proteins in plasma membranes for the transport of materials into and out of a cell?...

question

Biology, 09.08.2019 23:20

Where does the cell get energy for active transport processes?...

question

Biology, 09.08.2019 23:20

Discuss why the following affect the rate of diffusion: molecular size, temperature, solution density, and the distance that must be traveled....

question

Biology, 09.08.2019 23:20

What problem is faced by organisms that live in fresh water? their bodies tend to take in too much water. they have no way of controlling...

question

Biology, 09.08.2019 23:20

Describe the position of the transition state on a vertical energy scale, from low to high, relative to the position of the reactants and products, fo...

question

Biology, 09.08.2019 23:20

Both of the regular intravenous solutions administered in medicine, normal saline and lactated ringerâ€™s solution, are isotonic. why is this importan...

More questions: Chemistry Another questions