0.5 g of zinc dissolved In dilute sulphuric acid gives 183cc of moist hydrogen at 9°C and 748mm . what would be the volume of gas at NTP? Calculate the weight of zinc required to liberate 22 .4 litres of dry hydrogen at NTP? (aqueous tension at 9°C =8.6 mm) [ans= 0.172 w 659)

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoften gain electrons easilygood conductorpoor conductorcan be liquidselements

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !