Ethylene glycol C2H6, is a common automobile antifreeze agent. Calculate the freezing point of solution containing 651 grams of EG in 2505 grams of water. The molar mass of EG is 62.01 g/mol (Kf=1.86° C/m) and (Kb= 0.52 ° C/m for water)
Show your solution.
find the percent by volume of a 37 ml solution if it contains 16 ml of potassiuk hydroxide
6.80 g of soduim chloride are added to 265 g of water. find the mole fraction of thesoduim chloride and water in the solutiom
A life insurance company will sell a 1 million three-year term life insurance policy exclusive in a particular risk group for a premium of ₱2,000.00. Let X denote the net gain to the company from the sale of one policy. If a person in this risk group has a 99.95% chance of surviving within three years, find the expected value to the company of a single policy?
Calculate the boiling point of solution containing 3.5 g sugar (molar mass=342g) dissolve in water. Show your solution.
Woolworth wants to increase its total revenue from Zambia market. The company already identified two type of customers as high income and medium income and plans to offer a 10%
discount on the cloths it sells. The table shows the sells made from the two groups
High income customers
(sales per month in Kwacha)
Medium income customers
(sales per month in Kwacha)
Sales before 10% discount 1.55 million 1.50 million
Sales after 10% discount 1.65 million 1.70 million
(a) Calculate the price elasticities of demand for high income customers and medium income
customers.
(b) Do you support the discount applied for both type of customers? Explain based on your
results from (a)
As economic/business consultant to the dominant firm in a particular market, you have discovered that, at the current price and output, demand for your customers’ product is price inelastic. What advice regarding pricing would you give to management? Explain.
For a solution of pH 5.0 at 25°C, calculate [H+] and [OH-].
A flat surface of area 1.25 m2 is rotated through a uniform horizontal electric field of 5 N/C. What is the electric flux if the surface is (a) parallel and (b) perpendicular to the electric field?
A flat surface of area 1.25 m2 is rotated through a uniform horizontal electric field of 5 N/C. What is the electric flux if the surface is (a) parallel and (b) perpendicular to the electric field?