The melting point of calcium is 851 oC, its solid-state specific heat (Csolid) is 0.632 J/goC, and its heat of fusion (ΔHfus) is 233 J/g. How much energy, in joules, is required to melt 120.0 g of calcium at each of the following initial temperatures? (molar mass Ca is 40.08 g/mole)   a.) its melting point b.) 35.0 oC c.) 685 oC below its melting point

Q: How many grams of solid water can be melted with 1.55kJ of energy?

A: Given: Molar heat of fusion of water(∆Hfus ) = 6.01 kJ/mol  Heat energy(q) = 1.55 kJ

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A: The correct choices are:

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Q: Which of the following is the formation reaction for Na2CO3 (s)?   A. 2 Na(s) + C(s, graphite) + 3…

A:

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A:

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Q: A sample of carbon monoxide gas whose mass is 8.30 g is heated from 25.0 °C to 191°C at a constant…

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Q: 2]

A: Dear student I have given answer to your question in the image format.

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Q: Use the information provided to calculate the quantity of heat (in kJ) required to convert 70.8936 g…

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A:

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A:

Q: Tow many kilojoules of energy will be needed to decompose 10.8 g of N205 gas? N205 (g) + 110 kJ-> 4…

A:

Q: A common technique for forming metal electrodes on electronic devices is evaporation in a vacuum. In…

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A: Supplied energy

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A:

Q: What is the amount of heat energy in joules required to raise the temperature of 10.00 g water…

A: The required relation is given below.

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Q: Consider the following equation: 2 KCIO3 --> 2 KCI+ 3 O2 If potassium chloride has a heat of…

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A:

Q: When 50. g of solid carbon dioxide (dry ice) sublimes 28.6 kJ of heat are required. How much heat…

A: This problem is solved by means of the rules of unitary method.

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A: Condensation: It is the transformation of water vapor into liquid. It's the opposite of evaporation,…

Q: released

A: Moles of C = ( mass / molar mass of C )  Moles of C = ( 0.8g / 12.01gmol-1 )  Moles of C = 0.067 mol…