A 0.125g sample of gypsum was titrated to determine the percentage of calcium carbonate with 50 mL of 0.2M HCl. percentage of calcium carbonate was titrated with 50mL of 0.2M HCl. The excess HCl was titrated with 32.12 mL of 0.25M NAOH. Calculate the percent percent calcium carbonate in the gypsum sample.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.