Agas sample contains 4.00 g of ch4. what is the volume of the sample at stp

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice