bert

This page lists questions and answers that were posted by visitors named bert.

Questions

The following questions were asked by visitors named bert.

Consider the titration of 50 mL of 0.15 M NH3 with 0.1 M HCl. What is the pH at the equivalence point of the titration? (Kb= 1.8X 10-5 Ka= 5.6X10-10)

The river boat paddled upstream at 12km/h, stopped for 2 h of sightseeing, and paddled back at 18km/h. How far upstream did the boat travel if the total time for the trip, including the stop, was 7h? Please help me, the answer is 36 km but i have no idea...

A certain shade of blue had a frequency of 1.01*10^-4 Hz. What is the energy of exactly one photon of this light?

Choose the statement that correctly defines the changes in GDP due to the following transaction: Ghana exports cocoa powder to the US customers. US’s consumption increases, so US’s GDP increases. US’s consumption increases, and US’s net export decreases s...

Kristen was a doctor in 1944 and earned $12,000 that year. Her daughter, Amy, is a doctor today and she earned $210,000 in 2005. The price index was 17.6 in 1944 and 184 in 2005. Amy’s 2005 income in 1944 dollars is a $20,086.96 b $11,931.82 c $1,985,454....

Answers

The following answers were posted by visitors named bert.