How many grams of 50°C water is needed to melt 50g of 0°C ice to have a final temperature of 0°C? (What about if the final temp is 5 °C?) Given: ΔHfus = 6.04 kJ/mol; Cs = 4.18 J/g.°C
How many grams of ice at -15°C must be added to 705 grams of water that is initially at a temperature of 88°C to produce water at a final temperature of 11°C. Assume that no heat is lost to the surroundings and that the container has negligible mass. The specific heat of liquid water is 4190 J/kg·C° and of ice is 2050 J/kg·C°. For water the normal melting point is 0.00°C and the heat of fusion is 334 × 103...
At 80° C, 60 grams of water is saturated with KCl. How many grams of KCl will crystallize when the solution is cooled to 45°C?
The boiling point of water is 100.0°C at 1 atmosphere. How many grams of zinc chloride (136.3 g/mol), must be dissolved in 209.0 grams of water to raise the boiling point by 0.400°C? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 g zinc chloride.
The boiling point of water is 100.0°C at 1 atmosphere. (Kb(water) = 0.512°C/m) How many grams of calcium iodide (293.9 g/mol), must be dissolved in 280.0 grams of water to raise the boiling point by 0.300°C ? g calcium iodide.
The boiling point of water is 100.0°C at 1 atmosphere. How many grams of aluminum nitrate (213.0 g/mol), must be dissolved in 279.0 grams of water to raise the boiling point by 0.450°C? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02
The boiling point of water is 100.0°C at 1 atmosphere. How many grams of iron(II) iodide (309.7 g/mol), must be dissolved in 258.0 grams of water to raise the boiling point by 0.300°C? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 ___?___ g iron(II) iodide.
The boiling point of water is 100.0°C at 1 atmosphere. How many grams of manganese(II) bromide (214.7 g/mol), must be dissolved in 270.0 grams of water to raise the boiling point by 0.300°C? Refer to the table for the necessary boiling or freezing point constant Solvent Formula Water H20 Ethanol CH3CH2OH Chloroform CHCI: Benzene CH Diethyl ether CH2CH OCH CH3 K (°C/m) Kr(°C/m) 0.512 1.86 1.22 1.99 3.67 2.53 5.12 2.02 g manganese(II) bromide.
9:484 Back Specific Heat Chpt3.docx Heat Capacity 1) How many Joules of energy are required to raise 15g of aluminum from 30 C to 100°C? Given the heat capacity of Aluminum is 0.903 Jig C 2) If 6093 cal of energy is added to some pure substance. If the temperature went from 10°C to 50°C, how many grams of the substance was present. Given the of the substance is 2.45cal/g C 3) If 4x10* J of energy is added to...
How many grams of NaCl would need to be added to 4001 g of water to increase the boiling temperature of the solution by 1.500 °C? (Kb for water is 0.5100 °C/m)?