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Standardization of a Solution lab
Discuss two possible sources of error for this experiment
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- 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) 0.28AaBbCcDc AaBbCcDc AaBbC AABBCCC AaB Replace 1 Normal 1 No Spac... Heading 1 Heading 2 Title Dictate Sensitivity Editor ASelect v Paragraph Styles Editing Voice Sensitivity Editor C. Identify whether the substances listed below is an element (E), a compound (C), a Heterogeneous Mixture (HM), or a Solution (S) which is the same as homogeneous mixture. On the last column list TW0 physical properties of the substance. Physical Properties Element, Compound, Mixture, or Solution? Substances 1. Sausage 2. Steam 3. Salt Water 4. Pencil lead (Pb) 5. Soda 6. Silver (Ag) 7. Toothpaste (NazHPO4) 8. A burrito 9. LemonadeTable 1. Mass of measured liquids. Weight (Mass) Accuracy Precision Standard Deviation Average Volume XXXXX XXXXX 50 ul 0.069 XXXXX XXXXX 50 ul 50 ul O.069 XXXXX XXXXX 150 ul 291-0 0.16 aXXXXX XXXXX 150 ul 150 ul 0.140 XXXXXX XXXXXX 300 ul XXXXXX XXXXXX 300 ul 0.503 300 ul XXXXXX XXXXXX 800 ul .01 I XXXXXX 800 Hl 0.969XXXXXX 800 Hl
- Heather has a beaker containing about 200 mL of clear liquid. At the bottom of the beaker she can see some delicate spiny white crystals. Heather asks her A the mixture." Heather chemistry teacher how she might separate the crystals from the liquid. The chemistry teacher says "I think you should says "But I don't know anything about B !" His teacher replies "Don't worry, I'll explain the method. First, you'll need some thick unbleached paper and a funnel..." What are the missing words A and B in this story? A = -0 B SYou try your best to put your samples in the middle of the balance pan when you try to weigh them every time. However, you know that it is impossible to place your samples in the same location each time. This discrepancy introduces error to your measurements. systematic randomCite possible sources of error in an experiment.
- Give two examples of the Scale Factor Error (one of the types of systematic error). Please do not give what is already given in the example. I need it ASAP Thank youVeylinder (mL) Deylinder (g/mL) error Method Mass (g) Veylinder Digital Calipers Water mm3 mL Displacement 4. Explain why 1 cm 10 mm, but 1 cm 1000 mm'. You can use words and/or equations/math in your explanation! (2 pts) is more prerise?ow de 5. Base or yr ur d ita, whia mothud Joi kn w. - pis) gul Callpers or water displaceime.To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two different locations. To compare the means of the two different locations, it must first be determined whether the standard deviations of the two locations are different. Location 1 standard deviation: 0.050 Location 2 standard deviation: 0.34 What is the calculated ? value for comparing the standard deviations?