Chemistry, 01.06.2021 09:00 daphnevlogs11

If 6.75 g of NaOH are dissolved in 50.00 g of water and the temperature increases from 20.5°C to 47.8 °C. a. Is this an example of an endothermic or exothermic reaction?

b. What is the q for the reaction? (Remember since the NaOH dissolves in water add the masses to get the m)

c. How many moles of NaOH are dissolved?

d. What is the ΔH for the reaction?

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 21:30, AM28

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

Answers: 2

continue

Chemistry, 21.06.2019 23:00, dice50

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Answers: 1

continue

Chemistry, 22.06.2019 00:00, lakenyagillard79

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

Answers: 2

continue

Chemistry, 22.06.2019 02:00, natalie857123

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

Answers: 1

continue

You know the right answer?

If 6.75 g of NaOH are dissolved in 50.00 g of water and the temperature increases from 20.5°C to 47....