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To make a solution, 38.7 g of a nonelectrolyte is dissolved into 218 g of water. The freezing point of the solution is measured to be -5.53°C. Calculate the molar mass of the solute.
Write a function named "reduce" that takes two positive integer arguments, call them "num" and "demon", treats them as the numerator and denominator of a fraction, and reduces the fraction. That is to say, each of the two argument will be modified by dividing it by the greatest common divisor of the two integer. The function should return the value 0(to indicate the failure reduce) if either of the two argument is zero or negative and should return the value 1 otherwise.
A gun is fired with a velocity of 150m|s at an angle of 30°to the horizontal calculate its time of flight
A car that travels at 6.3 km/hr for 2.0 hrs, at 5.7 for 1.0 hr and at 6.6 for half an hour. What is its average speed?
Peoples Limited has the following securities in issue:
• 1 million ordinary shares currently trading at N$1.30 each. The last dividend paid
amounted to 15.5 cents and the earnings and dividends of Peoples are expected
to grow at 4% per annum.
• 250 000 non-redeemable 7% preference shares with a nominal value of
N$1.10 each. These shares are currently trading at N$0.65 per share.
• 1 550 12% unsecured bonds with a nominal value of N$100 each
currently trading at N$85 each. These bonds are redeemable in 3 years’
time at the nominal value.
Required:
(a) Calculate the weighted average cost of capital for Peoples Limited using market
values. (10 marks)
(b) Is there another way to calculate the weighted average cost of capital?
Support your answer with a brief explanation. Define all terms used in
your answer.
the percentage of oxygen in(
N
H
4
)
2
S
O
4
(NH4)2SO4
Calculate the volume of the solid formed by revolving about the line y=1 the region bounded by the parabola
𝑥
2 = 4𝑦 and that line. Take the rectangular elements of area parallel to the axis of revolution.
Create a class named 'Student' with a string variable 'name' and an integer variable
'roll_no'. Assign the value of roll_no as '2' and that of name as "John" by creating an
object of the class Student.
1. What volume of 0.596 M HCI is required to neutralise 30.0 ml of 0.809 M sodium Hydroxide?
2. Nitric acid, HNO3 is extensively used in the manufacture of fertilizer. A bottle containing 75.0 mL of nitric acid solution is labeled 6.0 M HNO3.
a. How many miles of HNO3 are in the bottle?
b. A reaction needs 5.00g of HNO3. How many mL of solution are required?
c. 10 mL of water are added to the solution. What is the molarity of the resulting solution?
25.0 ml of 0.350 M NaOH are added to 45.0ml of 0.125m Copper (II) Sulfate. How many grams of copper (II) Hydroxide will precipitate?
#340153 on Dec 2023