Questions by MarcelaDeros

0 votes

1 answer 79 views

Calculate the enthalpy change for the dissolution of 5.00 g of potassium chloride (KCl) in 100 mL of water. Given that the specific heat capacity of the resulting solution is 4.18 J/g°C, and its temperature increases from 25.0°C to 30.0°C. The molar mass of KCl is 74.55 g/mol, and the enthalpy of hydration of K+ and Cl- ions is -716 and -364 kJ/mol, respectively.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 18 views

Why is Spearman's two-factor theory important?

asked Jan 20 in Psychology

0 votes

1 answer 23 views

According to the terror management theory, what is the role of cultural worldview?

asked Jan 16 in Psychology

0 votes

1 answer 25 views

What is the cutting and burning trees to clear land for farming called?

asked Jan 6 in Science

0 votes

1 answer 46 views

Electric substations have what devices, which use electromagnetic induction to increase or decrease the voltage of the current?

asked Dec 30, 2024 in Science

0 votes

1 answer 10 views

Contour tillage helps slow water run-off and what process that causes topsoil loss?

asked Dec 27, 2024 in Science

...