The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.05 g of liquid water at 76°C into 1.05 g of steam at 100°C?

1-86 The specific heats of some elements at 25oC are as follows: aluminum = 0.215 cal/g · oC; carbon (graphite) = 0.170 caI/g oC; iron = 0.107 cal/g mercury = 0.033 1 caI/g oC. (a) Which element would require the smallest amount of heat to raise the temperature of 100 g of the element by 10oC? (b) If the same amount of heat needed to raise the temperature of 1 g of aluminum by 25oC were applied to 1 g of mercury, by how many degrees would its temperature be raised? (c) If a certain amount of heat is used to raise the temperature of 1.6 g of iron by 10oC, the temperature of 1 g of which element would also be raised by 10oC, using the same amount of heat?

Hi! Is this correct?  Kc = [N2O] [NO2] / [NO]^3

O density = (mass % NaCl) X 1.0046 mass % of NaCI = (density) X 0.0035 O density = 0.0035 X (mass % of NaCl) + 1.0046 %3D mass % of NaCI = 0.0035 X (density) + 1.0046 Question 2 Which of the following is not intensive property? density boiling point melting point volume Question 3 The density of an object is

Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food nutrients in one serving Fat Carbohydrate 33 g, Protein g, D3. Calculations for Calories (Cal) or kilocalories (kcal) per serving kcal (Cal) Carbohydrate Protein kcal (Cal) Fat kcal (Cal) D4. Total Calories (Cal or kcal) per serving kcal (Cal) D5. Calories (for one serving) listed on the label cal (Cal) D6. Percentage of total Calories from carbohydrate % (show calculations) D7. Percentage of total Calories from protein (show calculations) % D8. Percentage of total Calories from fat (show calculations) % Q 4. How does your calculated number of Calories in one serving compare to the Calories listed on the food product nutrition label? Comment on it.

A chemist prepares a solution of mercury(1) chloride (Hg₂Cl₂) by measuring out 1.96 mg of mercury(1) chloride into a 500. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's mercury (1) chloride solution. Be sure your answer has the correct number of significant digits. mol/L mo x10 x S

Prepare a solution of NaCl by accurately weighing approximately 1.45g of NaCl into a 100 mL beaker / conical flask. Record the mass of the sample. Add 25 mL distilled water. Mix until all crystals dissolve. Prepare a solution of magnesium chloride by accurately weighing approximately 3.61 g of MgCl2٠6H20 into a 100 mL beaker / conical flask. Record the mass of the sample. Add 25 mLdistilled water. Mix until all the crystals dissolve. 1. Calculate the molality of the NaCℓ and MgCℓ2.6H2O solutions. 2. Calculate the total mass of water (solvent) in kg: a) Mass of crystal water added (kg): b) Mass of water added (kg): c) Total mass of water added (kg): 3. Calculate the molality of MgCℓ2.   All questions follow on from each other. Thanks very much.

A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the density of the wine is 0.982 mg/mL, how much alcohol was consumed? 09.6 x 103 g alcohol O 301 g alcohol O 94 g alcohol O 106 g alcohol O 13.3 g alcohol

Jollibee Burger     Item                             Sodium(mg)                Fat(g)              Calories           Item cost($) Beef Patty                               50                                17                   220                  $0.25 Bun                                         330                             9                      260                  $0.15 Cheese                                     310                              6                     70                   $0.10 Onions                                     1                                  2                     10                    $0.09 Pickles                                     260                              0                      ,. 5                   $0.03 Lettuce                                    3                                  0                      4                      $0.04 Ketchup                                   160                              0                      20…

Please do both.