Standarddeviation

100- 8 8 Relative Intensity $ 20- 0- Relative Intensity 10 200- 80- 40- 20- 0- 10 20 30 m/z 20 20 100 $10 Chlorine OR Bromine OR Neither Chlorine OR Bromine OR Neither 90 100 100- Relative Intensity DO- ģ 20- 0 100 80 10 8 Relative Intensity 3 0- 10 40 30 60 15 m/z Chlorine OR Bromine OR Neither 35 40 45 m/z weytekakumpumakija 30 100 110 55 Chlorine OR Bromine OR Neither

Test Tube #2: Unknown sample (KCLO3 + KCL) 1. Determine the weight of unknown heated. 2. Determine the weight of oxygen gas released using the constant weight obtained after completion of the heating's. 3. Determine the number of oxygen gas (0₂) lost? 4. Using stoichiometry, use the number of O₂ gas released to determine the moles of KCLO 3 decomposed, 5. Determine the number of grams of KCLO, decomposed. 6. Based on the number of grams of KCLO, decomposed and the total amount of unknown placed in the test tube, determine the percent KCLO3 present within the unknown.

_HgO =>         _Hg    +     _O2

(vv)% = (10.0 mL150 mL) × 100 %Here, first solve the bracket,= (0.06666) × 100%now, do multiplication of above step,= 6.666 %= 6.7%vv% = 10.0 mL150 mL × 100 %Here, first solve the bracket,= 0.06666 × 100%now, do multiplication of above step,= 6.666 %= 6.7%   This problem answer is not helping me. Is there any way you can give me a video I can watch or something please stuck on a homework problem?  I'm trying to understand what v/v w/v and molairty

The percentage of an additive in gasoline was measured six times with the following results: 0.13, 0.12, 0.16, 0.17, 0.20, and 0.11%. Find the 95% confidence interval for the percentage of additive.

Answer questions 1 and 2 according to the data given. Dater Weight of cream i: 326 kỳ. Table shows some data obtained directly from Lactascan instrument. Fat % SNF % Lacto- density 27.32 30.23 Raw milk 4.15 7.97 Skim milk 0.08 8.26 Q1. Calculate fat percent of creamn A) 46 B) 28 (C) 3D D) 0.046 آدرما 396 100 x Q2. Calculate efficiency of the cream separator. A) 100% B98% C) 97% D) 96% E) 87.2% amount 2500 L E) 0.28

73Ga ? 73Ge + _____

Calculate mass index

A common alkyne starting material is shown below. Predict the major product or missing reagent to complete each reaction. Ignore inorganic byproducts. + esc CI CI ! F1 143,176 @ F2 # 3 31, 80 F3 Select to Draw HCI (1 equiv) DEC 6 $ 4 Q F4 % 5 tv NA 9 F5 A 6 C F6 & 7 A B с D F7 * 8 F8 Cla (1 equiv) Cla (2 equiv) HCI (excess) NaCl (2 equiv) THF Done 9 F9 - . F10 0 F11 27 F12

Calculate consumption when Y = 247. Round your answer to a whole number. Consumption, Saving 1200 1100 1000 900 800 700 600 500 300 200 100 0 -100 -200 0 Answer: 200 400 600 National Income 800 C= 150 +0.75Y 1000 1200

Please ONLY do #4 not #2

Could you help me with question one please?

Can you please help by writing the answer in the style of the empty boxes, please! Thank you.

Can somebody help me with this problem by explaining the transition there at the bottom? How it went 2.468.. to 11.8025?

2a. Volume in graduated cylinder , indirect method - volume of a 400mL Beaker(2 methods) measure in to the 10ths place. Fill#1/Fill#2/Fill#3/Fill#4/Fill#5/= Total Volume . 2b. Direct Method ( use formula for the volume of a cylinder):V=nr(2)h {show work} Radius/ height/ n-3.1415/ Volume (n r2 h)

Actual volume of water delivered by pipet and Percent error in volumetric pipet

Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i days

3. Elektron bergerak dalam daerah di antara 2 plat paralel dengan kecepatan 1.88 x 107 m/s dan melalui beda potensial 1000 V. Tentukan besar medan magnet agar elektron menempuh garis lurus. V₂ = 1000 V + + + + + + + + + + + +++ + X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X V₁ = 0 V b 2 cm

5 x 10-8 kL= ? mL   be sure to show work and report correct number of sig figs and units

I. Data Record data with units. A. Standardization of KMnO4 1. Mass of beaker/paper + ferrous ammonium sulfate Empty Beaker Beaker and Sample Sample 1 7.40709 8. 4800g Sample 2 7.4364g 9.19498 Sample 3 7.46.324 8.48993 2. Buret readings Initial Reading Final Reading Sample 1 0.00mL 27.00m L Sample 2 21.6 mL 29.5mL Sample 3 33.5mL 29.3mL Mass of Sample 1.0439 0.45269 1.0259 Volume KMnO 27.00mL 27.40 mL 25.8ML

Perform the following mathematical function.51.11 + (0.97/2.414 × 0.32150 × e.-3.25) + 1.52444 3.4 The written value of 1.0 μm meansa. 102 mb. 10-2 mc. 106 m d. 10-6 m e. 10-9 m 1.2 An example of a physical property isA) the reaction of rubidium with water to form rubidium hydroxideB) the density of boronC) the burning of sulfur to form sulfur dioxideD) the reaction of cesium with oxygen to form cesium superoxideE) the energy content of liquid sodium