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Where did you get the 1.6*10^-19 and the 9.1*10^-31?
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- Which of these statements are qualitative? Which are quantitative? Explain your choice in each case. (a) Sodium is a silvery-white metal. (b) Aluminum melts at 660 C. (c) Carbon makes up about 23% of the human body by mass. (d) Pure carbon occurs in different forms: graphite, diamond, and fullerenes.2.95 Engineers who design bicycle frames are familiar with the densities of aluminium (2.699 g/cm3), steel (7.87 g/cm3), and titanium (4.507 g/cm3). How does this information compare with Figure 2.12, and what would it suggest for changes in this figure if more shades were used for the density colour-coding? (Iron is the principal component of steel)← X g 單 0 Priva Tern C My Account - MySam - Sam Hou X Content X Q mathway calculator - Search https://shsu.blackboard.com/ultra/organizations/_202946_1/cl/outline LI Lets start with the medical components. We need to determine how many units of the syringe connections can be made out of one metric ton of PEI, or around 2205 lbs of the plastic. X M Mathway | Basic Math Problem S X + 1 metric ton = 2205 lbs Starting material - PEI 1 metric ton ≈ 2205 lbs Calculation for number of units of each component: total weight of starting material PEI X Products Medical components Stopcock with Luer Connection, 1-way, male lock unit weight 2.72 g = 3/500 lbs 1 unit of medical component 1 weight of unit of component This calculation assumes all starting material is used during the production of the components. Medical components Products Stopcock with Luer Connection, 1-way, male lock unit weight 2.72 g 3/500 lbs Female Luer Lock 3/16" unit weight 0.63 g 7/5000 lbs Units = If necessary round to the…
- What is the mass of 4.00 cm^3 of sodium, with a density of 0.97 g/cm^3?its not 1.0 x 10^-14 eitherThe legal limit for chromium in drinking water is 0.10 ppm. What is the maximum permissible mass of chromium (in \mu gμg) in exactly 1.0 cup (8.0 fl. oz.) of drinking water? Assume the density of drinking water is 1.00 g/mL. (1 fl. oz. = 29.57 mL)(Express your answer with two significant digits.)
- I do not get how the notes get 8•10^15. can you please show me how it got this? Thank you.| 5. Calculate Medium fine steel wool has a strand diameter of 0.002 inch. If 100 g of this steel wool were burned, what mass of iron oxide would you expect to be produced?Enter the expression ¹4N+a, where a is the lowercase Greek letter alpha. Express your answer as a chemical expression. ΑΣΦ xa Xb a b b X 11 14 ¹4 N + He→ ¹ 0 +1¹H 17 8 www ? X **** |*****
- Complete the following nuclear equations. Write the mass number, atomic number, and symbol for the remaining nuclide. (Enter your answer in the form X. Enter He for an alpha particle, 18 for a beta particle, y for a gamma particle, 8 for a positron, n for a neutron, and p for a proton.)4:00 -5:20 pm CHEM2101 QUIZ WEEK 4 8 OCTOBER, 2020 WRITE ONLY YOUR ANSWERS IN BLUE OR BLACK INK DO NOT COPY THE QUESTIONS NUMBER YOUR ANSWERS CORRECTLY TO AGREE WITH THE NUMBERING OF THE QUESTIONS QUESTION 1: What are the physical properties of each of the following substances? arwa (a) copper(II) nitrate (b) sulfur (c) honey (d) drinking water QUESTION 2: What does the following picture show? S4. Two engineers are serving as trainees in a laboratory of a pharmaceutical company. One of their tasks involves determining the identity of a vitamin they were given by using any equipment or method at their disposal. As a hint, their supervisor gave them a list of possible candidates for the vitamins identity which includes: Vitamin Molecular Formula Folinic Acid C20 H23 N707 C3H11NO3 C,H,N20 C17H20N406 Pyridoxine Niacinamide Riboflavin To identify the vitamins identity, the two trainees separated their sample into two equal portions and performed two separate tests: [a.] Engr. Mayo used the flame atomic absorption spectrophotometer in order to identify the elemental composition of the sample which happens to be 59.0% C, 5.0% H and 22.9% N by mass [b.] Engr. Busog on the other hand mixed his 3.88 g sample with 30.0 mL of nitrobenzene, C,H5NO2 (Latent Heat of Fusion = 79.81 J/g). Using Beckmann's method, he determined the freezing point depression to be 7.1 deg C. Based on the tests…
