Calculations You must show your work, report your answer in using the correct scientific notation, and...
Carry out the following conversions. Report your answer to the correct number of significant figures. (a) 102 m/s to ft/min × 10 ft/min (Enter your answer in scientific notation.) (b) 74.6 cm3 to in3 in3 (c) 47.4 g/mL to lb/in3 lb/in3
QUESTION 19 What is the mass percent of sodium, Na, in Na2O7 Report your answer to two significant figures and do not include units (the units would be %) Be sure to show your work on paper and submit it at the end of the exam so partial credit can be determined. NOTE: If you need to enter an answer in scientific notation, 6.02x1023 would be entered as 6.02E23 QUESTION 20 What is the mass in grams of a single...
Conversions. SHOW YOUR WORK! You will be graded on correct units and setup as well as the final answer. Note: for molar mass, use all digits given on the periodic table (do not round the molar mass). How many molecules of CHO are in 2.67 moles of C3H2O? Answer = What is the mass, in grams, of 9.57 x 1022 atoms of Ca? Answer =
how do you write the answer for number 7 in appropriate scientific notation? I All times in the laboratory? Lab cot more protechons, except es 3. Lab Safety: Rule 6.If an accident does occur, no matter how minor it may seem, tell the ( Tastructor ) the accident at once. For question 4 8, Perform the operation an express your answer in scien figures. If there are units, make sure that the units of the answer are correct. ific notation...
Be sure to answer all parts. Be sure to report your answer to the correct number of significant figures. Calculate AG and Kp for the following processes at 25°C: (a) H2(g) + Br2(1) 211B10 0 AG- k.I/mol x 10 (Enter your answer in scientific notation.) (b) , H2(g) + , Br2() HBr(g) 0 AG k.J/mol Кр Enter your answer in scientific notation.) × 10
the standard enthalpy of formation of MgO lab please help! thank you MUST SHOW ALL CALCULATIONS and CORRECT SIGNIFICANT FIGURES. RE NEAT 1. How many grams of hydrochloric acid solution are present in 23.3 mL of that solution? The density of the hydrochloric acid solution is 1.00 g/mL. 2. Convert 0.6319 grams of Mg to moles of Mg. 3. Convert 1.1162 grams of Mgo to moles of Mgo. 4. AH for the reaction MgO (s) + 2 H(aq) What is...
(6 pts) Give your answer in the correct number of de fiets scientific notation only when we wse your calculator if you wish but remember that your calculator does NOT figure our sig. fig. A. 48.32 - 48.31 = B. 7.5+5.3 7.83 4.64 x 10-39 39.86 x 1042 x 21.6 x 10-28 8.(2 pts) Do the following calculations. Treat all the numbers as being "exact". Ans. 8-5x 3 + 7 (5+ 3) + 2 = 9. (2 pts) Solve for...
CHM1103 - EXPERIMENT 8 Section: Show your work for all calculations, you MUST justify your answer to get credit. Answers should reflect the appropriate number of significant figures and include labels. Synthesis of Acetylsalicylic Acid Determine the limiting reagent (show your work) and use it to calculate the theoretical yield of the product in grams. The density of acetic anhydride is 1.08 g/mL.
How many moles is 1.964 g of calcium oxalate monohydrate, Ca(C2O4)·H2O? Report your answer in scientific notation in this form: 1.234e56.
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)...