Perform the following operations. Express your answers with the correct number of significant figures (don’t forget to include your units in your final answer). a. 37.26 m + 2.7 m + 0.0015 m =

b. 256.3 mL + 2 mL + 137 mL + 10 mL =

c. 300. kPa x 274.57 mL / 547 kPa =

d. 346 mL x 200 K / 546.4 K =
Hel thirty point pls help

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.