How vitamins and minerals/trace elements affect health/human body (CO 3)explain
How vitamins and minerals/trace elements affect health/human body (CO 3)explain
Category: Chemistry
Explain the chemistry behind the two reactions that have occurred giving any relevant equations
Reagent Concentration, moles per litre (M) Sodium hydroxide – NaOH (aq) 0.500 Hydrochloric acid – HCl (aq) 0.500 Methyl orange – C14H14N3NaO3S (l)Experiment 1 Experiment 2 Mass used of tablet 1.246 g 1.201 g Concentration of hydrochloric acid (HCl) 0.50 mol dm-3 0.50 mol dm-3Volume of HCl added to the flask 0.0400 dm3 0.0400 dm3 […]
.Determine the indices of (a) the direction and (b) the plane.Problem 5(a) Problem 5(b)
MECH 210 –Materials Science and Engineering Assignment 02, Spring Semester 2021due Monday (2/8)9:05 AM1.If the atomic radius of aluminum is 0.143 nm, calculate (a) the volume of its unit cell in mm3, (b) its theoretical density, and (c) compare its calculated density in part (b) with the experimental value inside the front cover of our […]
Describe and explain in detail at least three distinctly different uses for the element.
Paper detalis: Write a five-paragraph research paper on a chemical element (word limit 700-1000), focused on the following: Locations/Origins : Explain where the element comes from originally (for example: air, ground, made in lab, etc.). If it is found mostly in a particular geographic region, you should include that information. Also, report on the element’s […]
How do the amounts of the reactants compare? How do the amounts of the products compare? For these two bottles, does the amount of product appear to be proportional to the amount of ammonia used?
Task 1 Changing the Amount of Ammonia In this task, you will carry out the chemical reaction between ammonia and Epsom salt: 2NH3 + MgSO4 + 2H2O → Mg(OH)2 + (NH4)2SO4. You’ll use varying amounts of ammonia to see how the amount of a reactant affects the amount of product. You’ll need these materials: safety goggles protective gloves apron 3 […]
This is a final paper for chemistry, the course is about applying chemistry to society. The paper must answer the following: Why fossil fuel generating electricity would be the most beneficial moving forward and defend that choice, what society would look like with that as the primary source of energy and how our society will […]
DETERMINATION OF FLUORIDE USING AN ION-SELECTIVE ELECTRODE PURPOSE
DETERMINATION OF FLUORIDE USING AN ION-SELECTIVE ELECTRODE PURPOSE This experiment is designed as a no-risk opportunity to demonstrate competence in calculations and performing the associated dilutions to create a calibration curve with high linearity and high accuracy (as determined by the slope of a linear regression between instrument response vs concentration). You will then apply […]
Describe the result of Miller and Urey experiment
Describe the result of Miller and Urey experiment -one slide- result & explanation( for explanation write it under the note section) one slide- conclusion ( if possible drawback) -The link to actual paper – https://abenteuer-universum.de/pdf/miller_1953.pdf -the sources must be reviewed paper 2 White background. 3 Legends and titles in black or dark fonts. 4 […]
Use the results above to discuss the composition of samples X and Y.
3. Two samples of unknown alkaloids (X and Y) are analysed using paps chromatography. They are compared against the results obtained with samples of foi known alkaloids A, B, C and D. The results are shown in the table below: B C D Y Sample Rf value A 0.1 B 0.5 C 0.7 D 0.8 […]
Examine your plot carefully and decide the wavelength at which maximum absorbance occurs
Wavelength (nm) Absorbance 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 Wavelength (nm) Absorbance 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 550 6 Wavelength (nm) Absorbance 560 570 580 590 600 610 620 630 640 650 660 670 680 […]