Potassium hydrogen phthalate (molar mass = 204.2 g/mol) is one of the most commonly used acids for standardizing solutions containing bases. khp is a monoprotic weak acid with calculate the ph of the solution that results when 0.40 g of khp is dissolved in enough water to produce 25.0 ml of solution.

Iknow #2 is d. i just need to know why

One does not belong why? ice, gold ,wood ,diamond and table salt

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils