Question 4 (1 point) Determine how long (in s) it will take an electron to traverse a (3.95x10A1)...
Question 9 (1 point) If the atomic radius of a metal that has the simple cubic crystal structure is (3.40x10A-1) nm, calculate the volume of its unit cell (in nm 3) Use scientific notation with 3 significant figures (XYZx 10An). Note that Avenue automatically enters x10, so you only need to enter X.YZ and n. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer Scree
How many moles of fluorine atoms are there in (3.20x1042) grams of SF4? Give your answer in scientific notation with 3 significant figures. Do not put your answer. Remember, in scientific notation you must include an exponent, even if that exponent is zero. any units in Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer
Consider the following cell: Ni(s) | Ni2+(aq, 1.00 M) || Cl(aq, ? M) | Cl2(g, (5.100x10^-1) atm) Pt(s) For this cell, E° = +1.59 V and E = + (1.8x10^0) V at 25°C. Calculate the Cl(aq) concentration in the cathode compartment. Note: 10^0 = 1 The red text below just means to enter your final answer in regular scientific notation. Express your answer to two significant figures. Note: Your answer is assumed to be reduced to the highest power possible....
Electron released in an E-Field An electron is released from rest in a uniform electric field and accelerates to the east at a rate of 125 m/s2. Use this to answer the next two questions: Question 7 (1 point) Saved What is the magnitude of the electric field? First significant figure of answer: 7.00-10-10 N/C Answer to 3 significant figures. Note: Your answer is assumed to be reduced to the highest power possible.
How do you solve this? Question 5 (1 point) In order to calibrate a constant volume bomb calorimeter, the combustion of (7.9100x10^-1) g of benzoic acid, CoH5COOH, was observed to cause the temperature in the calorimeter to rise from 25.000 to (2.973x10^1) °C. The energy. of combustion of benzoic acid, AU, is -3226.7 kJ mol-1. What is total heat capacity (C) of the calorimeter (including all its contents) in kJ °C-1? Pay attention to significant figures, keeping in mind that...
Question 5 (1 point) In order to calibrate a constant volume bomb calorimeter, the combustion of (7.8100x10A-1) g of benzoic acid, C H5COOH, was observed to cause the temperature in the calorimeter to rise from 25.000 to (3.083x10^1) °C. The energy of combustion of benzoic acid, AU, is -3226.7 kJ mol1, What is total heat capacity (C) of the calorimeter (including all its contents) in kJ °C1? Pay attention to significant figures, keeping in mind that a temperature difference is...
How many grams of Mg(NO3)2 (MM = 148.33 g/mol) would it take to lower the freezing point of (4.95x10^2) grams of water by 4.00°C? The freezing point depression constant of water is Kp = 1.86°C/m. Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: X10 Answer
20----03 Three parallel wires of length L = (9.5260x10^-1) m are positioned in a triangular configuration as shown in the figure. Each side of the equilateral triangle has length a = (2.26x10^-2) m. If each wire carries a current of / = (4.190x10^-3) A out of the page, what is the magnitude of the net magnetic force on wire 1? Express your answer using three significant figures. Use a symbol of units when entering your answer, for example s for...
Nitrogen is sometimes diffused into the surface of a steel component in a process called case hardening. Consider a sheet of steel (1.416x10A0) mm thick which has nitrogen atmospheres on both sides at a temperature of 1200°C. The system is permitted to achieve a steady-state diffusion condition. The diffusion coefficient for nitrogen in steel at this temperature is (6.735x10A-11) m2/s. The diffusion flux is found to be (2.52x10A-7) kg/m2-s. It is also known that the concentration of nitrogen at the...
Question 2 (2 points) Calculate the mass of (3.28x10^25) atoms of nickel metal. Provide your answer to the correct number of significant figures and without units. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: X10 Answer Question 3 (2 points) Calculate the number of molecules in (7.48x10^-1) moles of calcium hydroxide, Ca(OH)2 Provide your answer to the correct number of significant figures and without units. Note: Your answer is assumed to be reduced...