You have obtained a job at a small microbrewery, and have been tasked with growing a new strain of yeast under purely aerobic conditions without any major products. the biologists working with you have told you that the biomass has a chemical formula of ch1.7900 54no.18 with 6% ash, the best substrate for optimal biomass production is sucrose, and ammonia should be used as the nitrogen source. the biomass yield from sucrose is 0.8 g/g. a) write down and balance the stoichiometric equation. use an electron balance to you solve this problem (assume nitrogen valency is relative to nh3). show your work and/or indicate what resources you used to solve this problem. b) what are the heating/cooling requirements for this process per g of biomass produced? (hint: read the problem statement indicate whether heat must be added or removed for full credit. c) did you need to solve the entire stoichiometric equation to solve part b? if not, what were the key values? write down the equations would you use to calculate these values efficiently.

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

1. an experiment in your science class lists the materials needed for the lab. it is your job, as a lab partner, to measure out 25 ml of distilled water and 2.5 grams of magnesium. what lab measuring tools would you choose to measure each substance and how would you use each tool to get the correct amounts? be sure to describe the process you would follow step-by-step. (5 points) 2.which of the following is an si base unit for measuring mass? (2 points) ampere gram meter pound 3.which of the following is an si base unit for time? (2 points) decades hours minutes seconds 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer. 5.a pencil beside a metric ruler. the ruler is scaled from 1 centimeter to 10 centimeters, with markings for millimeters between each number. one end of the pencil is beside the 0 on the ruler, and the pencil point is beside the 5. which of the following measurements is accurate but not precise? (2 points) 5 mm 5 cm 50 mm 50 cm 6. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli 7. which of the following types of graphs is best for plotting the percentages of a whole value in a data set? (2 points) bar graph circle graph histogram line graph

What is the number of neutrons in an atom with atomic mass of 35