Thanks please rate it up.
. All final answers must have the correct number of significant figures All final answers must...
. All final answers must have the correct number of significant figures All final answers must include the correct units and direction (where appropriate) . Question 7:45.0 kg of water at 12.0°C is heated to 62.5°C in a hot water heater. Determine: a) The volume, in litres, of the water being heated (p = 1000 kg/m?) b) The amount of energy needed to heat the water (c = 4186 J/(kg:°C )] c) The cost to heat the water, if the...
. All final answers must have the correct number of significant figures All final answers must include the correct units and direction (where appropriate) . Question 6: What is the final temperature, in degrees Celsius, of a 0.755 kg glass casserole dish if it was heated from a starting temperature of 19.4°C by 94.3 kJ of heat?
. All final answers must have the correct number of significant figures All final answers must include the correct units and direction (where appropriate) . Question 8: How much energy is required to boil 99.4 kg of ammonia already at 100°C?
Show your work. Use the correct number of significant figures in your answers. Aluminum metal reacts with chlorine gas to form solid aluminum chloride. 1. Write the balanced equation including states of matter. 2. If 70.0 grams of aluminum reacts with excess chlorine gas, how many grams of aluminum chloride will form? 3. How many grams of chlorine will react completely with 85.6g of aluminum? Sodium hydroxide reacts with sulfuric acid to produce water and sodium sulfate. 4. Write the...
answers should have correct significant figures. All four questions use the equation q = MCAT 1. How much energy is absorbed by a 70.0g sample of water being heated from 18 degrees Celsius to 100 degrees Celsius, given the heat capacity of water as 4.184J per gram degrees Celsius. 2. If a 20.0g sample of gold absorbed 250.0 Joules of energy, what was the change in temperature given a heat capacity for gold as 0.129J per g degrees Celsius? 3....
please write clearly and use significant figures. thanks in advance 3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/gºC. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling...
Round all answers to the correct number of significant figures. What are [H_3O^+], [OH^-], and pOH in a solution with a pH of 3.26?
lease write legibly. Round all final answers to the proper number of significant figures. Suppose you carry out an experiment to measure for the following reaction Nule] + 11 ng]- $ 140a + 14 (1) You follow the procedure outlined in the lab manual and acquire the following data using 50.0 mL of 1.0 M NHOH and 50.0 mL of 1,0 M HCl (for a total mass of 1000 g) A Temperature of calorimeter and NH OH before mixing: 22.1°C...
must be clear and self-explanatory to receive full credit. All numerical answer must have correct number of significant figures with appropriate units. 9. (10 pts) A 0.400-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string. The angular speed at the bottom is 8.00 rad/s. (a) What is magnitude and direction of the net force on the object at the bottom? (6) What is the tension in the string when the object is...
SHOW ALL WORK. Include the correct significant figures and units for full points. Useful equations and constants: heat lost/gained = (Volume) (Density)(AT)(specific heat capacity) (heat lost by hot water) - (heat gained by cold water) calorimeter constant = Density o - 1.00 g/mL Specific heat capacity (water) - 4.184 J/g °C AT cold 1. What is thermochemistry? (2 pts) 2. A student adds 5.00 mL of cold water to 5.00 mL of hot water in a test tube surrounded by...