59. A pycnometer is a device used to determine density. It weighs 20.455 g empty and 31.486 g when filled with
water (d = 1.000 g/cm'). Pieces of an alloy are put into
the empty, dry pycnometer. The mass of the alloy and
Pycnlometer is 28.695 g. Water is added to the alloy to
exactly fill the pycnometer. The mass of the pycnometer.
water, and alloy is 38.689 g. What is the density of the
allov?

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

Why is the bottom layer of a trophic pyrimid the