michaelar2819 michaelar2819
  • 13-05-2020
  • Chemistry
contestada

How much ice at 0°C could be melted by the addition of 15 kJ of heat? (ΔHfus = 6.01 kJ/mol)


a. 0.4 g

b. 2.5 g

c. 7.2 g

d. 45 g

Respuesta :

faithidahosa416
faithidahosa416 faithidahosa416
  • 19-05-2020

Answer: d.45 g

Explanation:see attached photo

Ver imagen faithidahosa416
Answer Link
xero099
xero099 xero099
  • 19-05-2020

Answer:

d. 45 g

Explanation:

The amount of ice melted is:

[tex]\Delta n = \frac{15\,kJ}{6.01\,\frac{kJ}{mol} }[/tex]

[tex]\Delta n = 2.496\,moles[/tex]

[tex]\Delta m = \Delta n \cdot M_w[/tex]

[tex]\Delta m = (2.496\,moles)\cdot \left(18\,\frac{g}{mol} \right)[/tex]

[tex]\Delta m = 44.928\,g[/tex]

Answer Link

Otras preguntas

Which of the following are not correctly balanced reactions? Check all that apply. A. C + Cl2 CCl4 B. C + O2 CO2 C. 2K + Br2 2KBr D. Mg + FeO 2Fe + MgO
There were 532 people at the Nutcracker. If admission was $24 for adults and $16 for children and $10,272 was collected, how many adults and children attended?
What is the Cambodian genocide
in regard to the boundary between India and Pakistan identify and explain what types of boundary exits between the two nations or regions.
What does the phrase "Queen of empires and the nurse of arms" signify?
If it takes (a) men (b) hours to dig (c) holes, how many men are required to dig b holes in c hours? give answer in terms of a,b,c
Add. ˉ8 + ˉ6 = ____ A. ˉ14 B. ˉ2 C. +2 D. +14
Sigma corporation applies overhead cost to jobs on the basis of direct labor cost. job v, which was started and completed during the current period, shows charg
When did Ptolemy live?
Why did king Louis XVI call the estates general into session in May 1789