Sev
This page lists questions and answers that were posted by visitors named Sev.
Questions
The following questions were asked by visitors named 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...
16 years ago
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...
16 years ago
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.
16 years ago
A person walks 10 m in the + direction, 32 m in the - direction. What is the displacement of that person from their starting point.
14 years ago
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?
14 years ago
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
12 years ago
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...
12 years ago
Answers
The following answers were posted by visitors named Sev.