16. What is the limiting reactant when 1.50 g of lithium and 1.50 g of nitrogen combine to form lithium nitride, a component of advanced batteries, according to the following unbalanced equation? Li + N, - LiN

vacuum filtration uses suction to speed up the filtration process?

Assume you have 0.5 m3 of soil with a porosity of 40% and an oven-dry weight of 700 kg. Calculate the bulk density. Next, assume that I drive over the soil with heavy equipment, compact the soil, and reduce the porosity from 40% to 20%. Calculate the bulk density after compaction.

Calculate the bulk density of a 110 cm3 soil sample that has a 25 percent water content (gravimetric or mass basis) and weighs 150 g.

Design and construct a data table. Be sure to give the table a title.

This image shows a basic SPEC piece of equipment. What is it? O A secchi disc A A fluorometer A laser aligner A polarimeter monochromator

- & Sketch New · C $ 7 ♡ www 1500 kg/m³ O 3000 kg/m³ 5000 kg/m³ 7000 kg/m³ 9000 kg/m³ 44 < HD E Material X has an atomic radius R = 0.125 nm, an atomic weight of A = 51 g/mol, and a body centered cubic (BCC) crystal structure. Calculate the mass density of this material. Hint: Do your calculations in SI units, as this will help avoid numerical errors from unit conversions. Choose the answer closest to your calculated value.

Plot a professional quality standard curve (absorbance vs. protein amount in µg) with an appropriate title and caption underneath the plot from the data give above. The caption should include the best-fit data.

When using the Dumas Method....   The student filled their 400 mL beaker with 250 mL of tap water and added 2 boiling stones.  They then sat their beaker on the hot plate and clamped it in place using a metal ring attached to a ring stand. The student began heating the beaker. The student obtained a 250 mL Erlenmeyer flask from the drying rack.  It looked clean but had a few water droplets inside.   The student cut out a 3 inch by 3 inch piece of aluminum foil and found a rubber band. The student determine the mass of the Erlenmeyer flask + piece of foil + rubberband.  The mass was 68.780 g. The student used a 10 mL graduated cylinder to measure out 4.5 mL of unknown liquid.  They added their unknown liquid to the 250 mL Erlenmeyer flask.   The student covered the Erlenmeyer with aluminum foil and rubber band.   Using a paper clip, the student poked 3 holes in the top of their aluminum foil The student then clamped their flask in the water bath, that hadn't started boiling yet.   When…

Which is more accurate, a transfer pipet or a measuring pipet? What is theuncertainty in microliters when you deliver either 10 mL or 100 mL from a 100-mL adjustable micropipet?