Jillian_Melick_Lab06-Sheep-Ruminant-Rumen

4. Gasoline can be reasonably approximated as C9H20 with a density of 0.718 g/mL. Diesel can be reasonable approximated as C14H30 with a density of 0.763 g/mL. (Both gasoline and diesel are complicated mixtures. These formulas are something like weighted averages of the formulas of the different components, where the weighting is based on various quantifiable behaviors. That is, using these artificial formulas for gasoline and diesel allows one to calculate average properties that match what petroleum engineers might measure.) The enthalpy change from burning one mole of gasoline is -6160 kJ. The enthalpy change from burning one mole of diesel is -7940 kJ. Determine which fuel generates the biggest enthalpy change per gram burned, and which generates the biggest enthalpy change per mL burned.

A meter of polyaramide fiber has a diameter of  450.μm , a mass of  0.198g , and takes  0.25s  to produce on an industrial spinneret. How would you calculate the mass of fiber that can be spun in  55.min ? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols.

Scenario In an investigation, lab groups combine two compounds, as shown below. Based on the data collected from all lab groups, you realize that one group’s data was not possible.     Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)   External Data   Group Number Mass of Mg (g) Mass of HCl (g) Mass of MgCl2 (g) 1 5  15                                     20 2 5 15 17 3 5 15 21 4 5 15                                     20 5 5 15                                    19   Prompt  Make a claim about which group’s data is not possible. Use evidence and scientific reasoning to support your claim. Include a rebuttal in your answer.   Claim (1 sentence): ______________________________________________________________.   Evidence 1 (2-3 sentences):…

The Covid-19 pandemic has many experts commenting on the science associated with the virus - origins, vaccines, monoclonal antibodies, masks, social distancing.  It is important to consider what the experts say, but to also evaluate their statements.  We will start with the scientific method.  I want you to outline the scientific method from what you have been taught in previous classes.  You can list steps, parts, process, short descriptions, whatever.  If not taught in previous classes, then you will make your best guess about it.

2. Why is performing multiple trials of an experiment a best practice in science? Ω x² X2

If you were told the average weight of a chickadee is 1.5gm, does that mean all chickadees are 1.5gm in weight? Explain. How would you find out the range of weights?

A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 64.22 pg. What is the total mass in micrograms of cofactor A in a yeast colony containing 105 cells? Write your answer as a decimal. answe should be in micrograms.

A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 21.18 pg. What is the total mass in micrograms of cofactor A in a yeast colony containing 105 cells?

CHEMISTRY 3A---WORKSHEET 2 CHAPTERS 1 AND 8 1. The different colors of light have different wavelengths. The human eye is most sensitive to light whose wavelength is 555 nm (greenish-yellow). What is this wavelength in millimeters? A tun consists of four hogsheads, one hogshead is 0.500 butt, and one butt is 126 gal. How many liters are equal to 1.00 tun? 2. A day on Jupiter is 3.543 x 104 seconds long. How many earth days are equal to one day on Jupiter? 3. 4. The human body is 0.0040% iron. How many milligrams of iron does a 165 pound person contain?

All waste from a chemical experiment should be put in the same waste container    true or false?

We commonly encounter chemical reactions in daily life such as fire and biological metabolism. Cite at least two (2) examples of real-life situations that involve the Law of conservation of mass and explain how these affects you.

After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and processing her data, Sally found that her drinking strength Kool-Aid sample had a concentration of 4.692 x 10–5 M. If 0.132 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her Kool-aid powder? Report your answer as a percentage with two places after the decimal. Do not include the percentage sign in your answer. Pay attention to units. You are trying to find the mass percentage of red dye, so you need to know each variable in the equation in Appendix B. Note that the percent by mass equation should be multiplied by 100. There may be some useful conversion factors in the experimental procedure.

how can i plot this data for concentration with depth?

After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and processing her data, Sally found that her drinking strength Kool-Aid sample had an FD&C Red 40 concentration of 1.086 x 10–5 M. If 0.133 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her Kool-aid powder?

Your recipe for BBQ spice mix makes 100 grams. You want to make 2 kg. What is the RCF?

You find a recipe for 50 people and you want to make it for 6 people.  What CONVERSION FACTOR would you have to multiply each item in the recipe by to make this recipe

A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 47.56 pg. What is the total mass in micrograms of cofactor A in a yeast colony containing 105 cells? Write your answer as a decimal. μg X 3

For number 19, I feel I am not doing it correctly. What is the steps and answer to number 19?

The study of detecting small quantities of substances in samples would most likely be performed by a chemist in the branch of chemistry known as ___ . organic chemistry biochemistry inorganic chemistry analytical chemistry physical chemistry