I Need help I will give the brainliest if you help me out so basically you have to make 5 questions with answers Carbon Based Molecules I need it ASAP for my school

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.