1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pickupchik [31]
3 years ago
13

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

Chemistry
2 answers:
BARSIC [14]3 years ago
7 0

Answer:

d. 45 g

Explanation:

The amount of ice melted is:

\Delta n = \frac{15\,kJ}{6.01\,\frac{kJ}{mol} }

\Delta n = 2.496\,moles

\Delta m = \Delta n \cdot M_w

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

\Delta m = 44.928\,g

anzhelika [568]3 years ago
5 0

Answer: d.45 g

Explanation:see attached photo

You might be interested in
How many joules of energy are made by the loss of 100kg of mass using the formula E=mc2? please help!!!
asambeis [7]

Answer:

E = 3 × 10¹⁰ J

Explanation:

Mass, m = 100 kg

We need to find energy made by the loss of 100 kg of mass. The formula between the mass and energy is given by :

E = mc²

Where c is speed of light

Putting all the values, we get :

E = 100 kg × (3×10⁸ m/s)²

= 3 × 10¹⁰ J

So, the required energy is 3 × 10¹⁰ J.

6 0
3 years ago
Type the correct answer in the box. Express your answer to two significant figures. An industrial vat contains 650 grams of soli
nikklg [1K]

88.98 %

The Balance Chemical Equation is as follow,

                                  2 HCl + Pb(NO₃)₂     →    2 HNO₃ + PbCl₂

According to equation,

          331.2 g (1 mole) Pb(NO₃)₂ produces  =  278.1 g (1 mole) PbCl₂

So,

                 870 g of Pb(NO₃)₂ will produce  =  X g of PbCl₂

Solving for X,

                     X  =  (870 g × 278.1 g) ÷ 331.2 g

                     X  =  730.5 g of PbCl₂

Therefore,

               Theoretical Yield =  730.5 g

Also as given,

                Actual Yield =  650 g

So using following formula for percentage yield,

                        %age Yield  =  (Actual Yield / Theoretical Yield) × 100

Putting values,

                        %age Yield  =  (650 g / 730.5 g) × 100

                        %age Yield  =  88.98 %

Brianliest please and thank you.

6 0
3 years ago
4. which answer below is the formula mass of a water molecule?
mars1129 [50]
The answer is 18.02 g/mol
6 0
3 years ago
A swimming pool has the dimensions of 10m, 5m, and 1m. what is the volume?
aliya0001 [1]
It is 50. The answer is 50. 10x5=50 50x1=50
8 0
3 years ago
Read 2 more answers
When reptiles and fish young are they look like __ similar to their parents? Please hurry!!
WARRIOR [948]
Fishes yes according to the age, reptiles yes
8 0
3 years ago
Other questions:
  • What requirements do you need for stoichiometry?
    6·1 answer
  • Imagine that some atoms of lithium (Li) and oxygen (O) form an ionic bond.
    13·1 answer
  • Why aerosol is called colloidal dispersion dosage form?
    14·1 answer
  • A d d m y s n a p gianavaughn007 ;)
    9·2 answers
  • Graphite from a pencil and a diamond ring are made of the same material. Explain how this is possible. Include a detailed descri
    15·1 answer
  • BRAINLIEST!!
    15·1 answer
  • Definition of atomic number ​
    14·2 answers
  • Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2.
    8·1 answer
  • Question 5
    11·1 answer
  • Which atom generally obtains a stable configuration by sharing electrons?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!