What is the pH of 0.550 M H2 SO4

1 mole ch4 molecules, 1 mole sf2 molecules, 1 mole n2o molecules, or all of the selctions are equal which has more molecules?

What is the formula of the most stable oxide of francium?

Air is transferred from a 75 L tank where the pressure is 125 psi and the temperture is 288 k to a tire with a volume of 6.1 L and a pressure of 25 psi. What is the new temperture.

1 L of N_2_ gas, having a pressure of 2.5 atm, is added 1 L of Ar gas, having a pressure of 3.7 atm, in a sealed, rigid flask. What is the final pressure in the flask?

Which 1-mole sample has the least entropy? (1) Br2 (s) at 266 K (3) Br2 (l) at 332 K (2) Br2 (l) at 266 K (4) Br2 (g) at 332 K

Write a checklist with at least three entries for how you can evaluate whether scientific information is reliable.

Which is the following closest to the thickness of a dime 3 kilometer, 3 milmeters 30 centimeter, or 30 meters

The advantage of excreting nitrogenous wastes as urea rather than as ammonia is that

Which molecule is a dipole? CH4 N2 CCl4 NO2 BF3

Calculate the enthalpy of the formation of butane, C4H10, using the balanced chemical equation and the standard value below: 4C (s) + 5H2 (g) = > C4H10 (g) Standard enthalpy of formation values: (Delta Triangle) H^0 of C (s) = - 393.