Questions asked by Ronan. M.

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• 3) 10 mL of a 0.1 M NaOH solution were titrated against a 0.05 M HCl solution. How much (in mL) of the 0.05 M HCl solution will be required to reach the end-point of the titration?
  
• During a season a certain football team won half its matches, drew one fifth of its matches and lost the rest. If the team drew 20 matches, find how many matches the team lost?
  
• The sum of Jim and Simon's ages is 96. If Simon is 12 years older than Jim, how old is Jim?
  
• As part of a physics experiment students were asked to stretch a spring to extend it's length by 40%. If the original length of the spring is 45 cm, what should be the length of the extended spring? Enter your answer as a whole number. There is no need to
  
• How can i do this quiestion? Find the first and second derivatives of the following function: #f(x)=2cos(x)+sin(2x)#
  
• How do i write this in polar form? (cos(-2π/9)+isin(-2π/9))^3
  
• How to write (6-6i)/(-sqrt(3)+i) in exponential form re^((i)(θ))?
  
• Every polynomial with complex coefficients can be written as the product of linear factors. Enter the linear factors of #P(z)=1+z+⋯+z^6+z^7# any help?
  
• Evaluate #(sqrt(-1))/(sqrt(-6)sqrt(-1))#?
  
• (6−6i)/(–√3 + i) in exponential form?
  
• 0.10 moles of glycerol is dissolved in 1.20 kg of benzene. What is the change in freezing point given that benzene has a freezing point depression coefficient of -5.065 K kg mol-1? (Answer to two decimal places)