How many kJ are in 27.4 kcal?

Please explain and show the steps to how you got this!

49.62 kcal into joules

A neutral solution of water at a particular temperature has a concentration of OH⁻ of 4.5 × 10⁻⁷ M. What is Kw at this temperature?

A neutral solution of water at a particular temperature has a concentration of OH⁻ of 8.0 × 10⁻⁷ M. What is Kw at this temperature?

Use your data to calculate the number of Calories in a 3.4 g sugar cube. (Molecular mass of sugar = 342.2965 g/mol; ΔHcomb sugar = 5639 kJ/mol; 1 Calorie = 1 Kcal)

Perform the conversions between energy units. 588 kJ = J 3425 kcal = kJ 8.97 x 106 J = kcal FEB 23

The Nutrition Facts label for one slice of wheat bread gives Nutrition Facts the percent daily value of various nutrients based on a 2,000-kcal diet. Based on the percent daily values for the nutrients, calculate how many grams of each nutrient are Serving Size: 1 slice (25g) Amount Per Serving Calories 76 Calories from Fat 9 suggested daily for a 2,000-kcal diet. % Daily Value Total Fat 1.02 g 296 Saturated Fat 0.23 g 196 Trans Fat Cholesterol 0 mg Dietary fiber: Sodium 145.75 mg 696 Potassium 81.5 mg 296 Total Carbohydrate 12.79 g 496 Dietary Fiber 2.3 g g96 Sugars 1.44 g Total fat: Sugar Alcohols Protein 4.07 g Vitamin A 1 IU 0% Vitamin C 0 mg 0% Calcium 32.5 mg 3% Saturated fat: Iron 0.74 mg 4% Sodium: obout us careers privecy policy terma of uae contact us help Lr O 79°F

2- Find the relationship between kcal and kJ and convert the energy values found in (1) to kJ.

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