What mass of AX2 (molar mass = 75 g/mol) is needed to prepare 250 mL of a 0.35 M AX2 solution?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?