Sev

Hey guys I did a lab and I have to answer the questions relating to the lab. I did question 1 & 2, can someone check if they are correct, and question 3 I don't know how to do it. 1. Calculation to Determine the molecular weight of unknown substance Mass...

The much-abused drug cocaine is an alkaloid. Alkaloids are noted for their bitter taste, an indication their basic properties. Cocaine C17H21O4N, is soluble in water the the extent of 0.17g/100 mL solution, and a saturated solution has a PH = 10.08. What...

An 0.0284 aqueous solution of lactic acid is found to be 6.7% ionized. Determine Ka for lactic acid. HC3H5O3 + H2O <-- --> H3O^+ + C3H5O3^- Ka =? Thanks.

A person walks 10 m in the + direction, 32 m in the - direction. What is the displacement of that person from their starting point.

A boat sails 251 km to the East and then 534 km to the North. What is the distance of the boat from its starting point?

Calculate the average speed of the car in km/h, it can accelerate from 96.56 km/hr in 4.3 seconds. Distance is not provided

Jo student undertakes a unique experiment with his calculator. He goes to the school roof that is 18.0 m above the ground. He throws the poor calculator upward with a velocity of 42 m/s. Assume that the calculator goes straight up and just misses the roof...

Just wondering, why do you square the numerators?

D D A D 100%%

No name what are the real answers then???