How would the percent yield be affected if the na2co3 was not thoroughly dried in the crucible before weighing?

Fvlkmnetbprnv'pnrdcoifeaonebaoinf dkj be; on fabpion zkjabo; ngrw

What is the volume of 0.04 mol of a gas at 0.9 kPa and 20°C? A. 108 L B. 14.8 L C. 87.5 L D. 7.4 L

Smith and Cuvier discovered that similar groups of fossils in distant rock layers could be correlated. Why was this such a major breakthrough in geology? A. It disproved the principle of superposition. B.

He henry's law constant of oxygen in water at 25 °c is 773 atm mol-1kg h2o. calculate the molality of oxygen in water under a partial pressure of 0.20 at

Compare and contrast between nuclear fission and fusion

The changing of gas to liquid

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.