4. Calculate the molar mass of Na2S2O3 . 5 H20, to three decimal places. Do you...
4. (2 pts) Calculate the mass of CuSO4 5H20 required to prepare 4.0 mL of 0.040 M CuSO4 solution. Enter your answer in the box and show your work in the space below. Record the value in your lab notebook, as you will need it to complete the experiment. g
Name: Makeup Lab Assignment 1. Calculate the molar mass of each of the following molecules. Show your work and round your answer to the nearest gram/mole (3 points): a. CH BrCIF b. (NH),SO C. Fe, 2. How many atoms of Hare in 2.20 moles of (NH),PO.. Show your work, include units and round your answer to three significant figures (5 points).
1. What is the molar mass of KHC,H04 to 4 significant digits (use two decimal places off of the periodic table)? Use the following data to complete the lab: Trial 1 Trial 2 Trial 3 Mass of KHC,H,04 () 1.19 1.16 1.22 0.20 1.52 Initial volume of NaOH 0.12 im Final volume of NaOH 27.36 26.50 29.28 1 a. Complete the following table for each trial. Trial 1 Trial 2 Trial 3 Mass of KHC3H04 () Moles of KHC HOA...
Calculate the atomic mass of the chlorine-37 nucleus in amu (to three decimal places) assuming that the mass of a nucleon is 1.008 amu and the binding energy per nucleon is 1.326x10^12 J/nucleon. (1 kg = 6.022x1026 amu)
Calculate the atomic mass of the silicon-30 nucleus in amu (to three decimal places) assuming that the mass of a nucleon is 1.008 amu and the binding energy per nucleon is 1.326×10⁻¹² J/nucleon. (1 kg = 6.022×10²⁶ amu)
Calculate the atomic mass of the chromium-54 nucleus in amu (to three decimal places) assuming that the mass of a nucleon is 1.008 amu and the binding energy per nucleon is 1.326x10-2 J/nucleon (1 kg = 6.022x1026 amu) amu 1 2 3 4 5 6 7 8 9 +/- 2 3 23 5 6 7 W Q w 8 9 E 1 O R T Y C A O S P D G H J к Z L C V...
Post-lab Questions 1. Calculate the molar mass of H2O and CuSO4 (Relative atomic masses). Express your answers in grams per mole to the nearest hundredth (+ 0.01 g/mol). Show your work. 2. Calculate the mass of water driven off and the mass of copper (II) sulfate formed in your experiment. Express your answers in grams to the nearest hundredth (+ 0.01 a). Show your work 3. Calculate the number of moles of copper (II) sulfate present. Express your answer in...
3. Calculate the molar mass of sodium nitride 4. Calculate the molar mass of sulfuric acid 5. Give the percent by mass of each element in: magnesium nitrate 6. A compound has the following percentages by mass: oxygen 27.43 % ; barium 58.84% sulfur 13.74% What is the empirical formula for ths compound?
1. Calculate the molar mass of Calcium Acetate, Ca(C2H302)2 Show your work, include units
Post-lab Questions 1. Calculate the molar mass of H2O and CuSOs (Relative atomic masses). Express your answers in grams per mole to the nearest hundredth (t 0.01 g/mol). Show your work Calculate the mass of water driven off and the mass of copper (II) sulfate formed in your 2. experiment. Express your answers in grams to the nearest hundredth (t 0.01 g). Show your work. pper 3. Calculate the number of moles of copper (II) sulfate present. Express your answer...