(2pts) 2. Determine the number of moles of HFC-125 in 200.0 g of HFC-125 Show all...
200.0 g 02 Express your answer using four significant figures. 1V0 AEP O ? moles Submit Request Answer
Part A Estimate the number of moles of water in all the Earth's oceans. Assume water covers 75% of the Earth to an average depth of 3 km. Express your answer to one significant figures and include the appropriate units. Part B Estimate the number of molecules of water in all the Earth's oceans. Express your answer using one significant figure. Part A Estimate the number of moles of water in all the Earth's oceans. Assume water covers 75% of...
Please show all work! Thank you! Determine the equivalent state of stress on an element at the point which represents the principal stresses and the maximum in-plane shear stress and the associated average normal stress. Also, for each case, determine the corresponding orientation of the element with respect to the element shown in the figure below. Solve the problem using Mohr's circle. (Figure 1) Part D Determine the shear stress Try that acts on the element with orientation 0 =...
A 265-kg load is lifted 24.0 m vertically with an acceleration a=0.110 g by a single cable. A: Determine the tension in the cable. Express your answer to three significant figures and include the appropriate units. B:Determine the net work done on the load. Express your answer to three significant figures and include the appropriate units. C:Determine the work done by the cable on the load. Express your answer to three significant figures and include the appropriate units. D:Determine the...
Show the calculation of the number of moles in the given amount of the following 2 substances. Report your answer to 3 significant figures. 12.0 grams of Ca3(PO4)2
CHEMWORK Determine the number of moles for each compound. (Enter your answer to four significant figures.) Compound magnesium phosphate 366.8 g calcium nitrate potassium chromate 473.1 g dinitrogen pentoxide 376.6 g Mass Moles 201.7 g Submit Show Hints Try Another Version 9 item attempts remaining Submit Answer
None if the examples are helping me... please show all work for me PLEASE?! A 200-mm-focal-length lens can be adjusted so that it is 200.0 mm to 209.7 mm from the film. For what range of object distances can it be adjusted? Part A Determine de min Express your answer using two significant figures and include the appropriate units. НА ? Value mm Submit Request Answer
Please see online the molecular wheights if needed please answer all questions throughly density of acetic anhydride is 1.08 Report the melting point range of aspirin and compare it to the literature value in a t format 2. able 3a. Calculate the moles of aspirin that salicylic acid would form if it were the limiting reactant. Use proper significant figures, units and show all work. 3b. Calculate the moles of aspirin that acetic anhydride would form if it were the...
Show your work, include units, and report the correct number of significant figures for all calculations. 1. The molal freezing point depression constant (K) for p-dichlorobenzene is 7.10°C/m and its normal freezing point (f.p.) is 53.10°C. When 0.209 g of an unknown solute is dissolved in 4.00 g of p-dichlorobenzene, the f.p. is lowered to 50.20°C. Refer to the Introduction and Data Sheet to solve the following problems. °C. a) The f.p. depression (AT) is b) Calculate the molality (m)...
Questions 16 -19 (10 points each). Show all work! An answer with no work will be given a grade of zero. You must also include units and use proper significant figures in you answer. 16. Determine the overall order of reaction for CO(g)+ Cl, (g)-COC1, (g) from the following data: Еxperiment ICO1 (M) Rate (M/s) [C] (M) 1 1.29 x 102 1.000 0.100 2 1.30 x 1030 0.100 0.100 4.11 x 1030 1.000 0.100 4.08 x 1029 4 1.000 1.000