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What functions do carbohydrates perform in living organisms?

What is fashion designing?

This Python tutorial covers everything you need to know to start programming in Python, from downloading the latest version of Python to learning about variables and data types. It also provides an exercise for the reader to practice their skills.

In this Python tutorial, you're going to learn everything you need to know to start programming in Python. It is suitable for those who want to learn Python programming for data science, machine learning, or web development. The tutorial is taught by Mosh Hamadani, who has taught millions of people how to code. The first step is to head over to Python.org to download the latest version of Python. The next step is to install a code editor, such as PyCharm, which is free and open source. After that, the tutorial covers how to declare and use variables, as well as how to receive input from the user and convert data types.

The tutorial also provides an exercise for the reader to practice their skills. The exercise involves writing a program for a hospital to check in a patient named John Smith, who is 20 years old and is a new patient. The reader is asked to declare a few variables to store these values.

What is Arrays in Data Structure , Declaration, Initialization & Memory representation?

Who found the clock? 

Describe two ways in which otitis media can impair hearing permanently

Explain structure of eye

A feed mixture composed of 42 mol % heptane and 58 mol % ethyl benzene is to be fractionated at 760 mmHg to produce a distillate containing 97 mol % heptane and a residue containing 98 mol % ethyl benzene. Equilibrium data is given as:
x 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.9
y 0.26 0.44 0.566 0.65 0.73 0.79 0.85 0.953
Find:
(a) the minimum reflux ratio?
(b) the minimum number of equilibrium stages (at total reflux)?
(c) the number of plates required in the design of the distillation column operating at reflux ratio twice the minimum reflux ratio?
(d) Repeat (a – c) if the feed entering the tower is partially vaporized so that 40 mol % is liquid.

A-

B-

The pH of flat Sprite is usually 4.18. This gives a H+ concentration in the beverage of 6.61*10^-5 M H+ . Citric acid, the main component is Sprite is triprotic. given the dates, what is the concentration of citric acid in Sprite? Answer in scientific notation. How many significant figures should you have in your answer?

Average of citric acid per 2-L bottle of soda.

Draw a 3-ethylhexanoic acid. Draw the structure in line-bond form.

Following is the skeletal structure in line-angle (line-bond) mode of 2,5-dimethylhexa-1,4-diene. Identify the number of hydrogen atoms bound to each carbon in the structure.

If 61000 pounds of raw materials are needed to meet production in August, how many pounds of raw materials should be purchased in July?

A flask contains 0.350mol of liquid bromine, Br2. Determine thenumber of bromine molecules present in the flask.

A flask contains 0.180 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.

0.120 molmol of liquid bromine, Br2

What is the pH of an aqueous solution containing 0.250 M ammonia(NH3) (Kb = 1.80 x 10^-5)? 20.00 mL of 0.250 M aqueous ammoniasolution was titrated with 0.300 M HCl. After 100.00 mL of HCl isaded, what is the pH of the solution?

7. A solution containing 25 mL of ammonia at unknownconcentration is titrated to the equivalence point using 23.24 mLof 0.23 M HCl. What was the original concentration of the ammoniasolution?

...M?

You require 36.75 mL of 0.0105M HCl to reach the equivalence pointin the titration of 25 mL of aqueous ammonia, NH3.
(a) What was the concentration of NH3 in the original ammoniasolution?
(b) What are the concentrations of H30+, OH-, NH4+ at theequivalence point?
(c) What is the pH of the solution at the equivalence point?

Ammonia (NH₃) is a weak base with a pKb of 4.75. Its conjugate acid, ammonium (NH₄⁺) has a pKa of 9.25. Set up a titration using 20.00 mL of HCL to titrate 20.00 mL of aqueous ammonia solution.

Concentration of HCl soln: 0.1044 mol/L

Initial buret reading (mL): 0.00

Buret reading at equivalence pt (mL): 14.41

Calculate the following:

a.) Moles of HCl added at equivalence pt

b.) Moles of NH₃ in sample

c.) NH₃ concentration (mol/L)

d.) pH at equivalence point

e.) pH at half the volume required to reach equivalnce

f.) pKa of ammonium (NH₄+)

g.) pKb of ammonia

Thank you!

Acetic acid is a weak acid with a pKa of 4.75. Set up a titration using 20.00 mL of acetic acid solution to 20mL strong base NaOH.

Concentration of NaOH soln: 9.878x10^-2 mol/L

Initial buret reading (mL): 0.00

Buret reading at equivalence pt (mL): 21.51

Calculate the following:

a.) Moles of NaOH added at equivalence pt

b.) Moles of acetic acid in sample

c.) Acetic acid concentration (mol/L)

d.) pH at equivalence point

e.) pH at half the volume required to reach equivalnce

f.) pKa of acetic acid

Thank you!

A 20 mL sample of a 0.1 M weak acid K_a= 1.8x10^-5 is titrated with 0.12 M NaOH. Sketch the titration curve and identify initial pH, equivalence point, pKa, and pH at equivalence.

Sketch a tirtation curve if titration of 40.0mL of 0.125 M acetic acid, with 0.125 M NaOH. (Ka for acetic acid = 1.8 x10^(-5))

-Use the pH value (initial pH, equivalence point, pH after adding 50 mL of NaOH) to sketch a titration curve.

sketch a titration curve for the titration of 100 ml of 0.0125 M acetic acid with 0.0100M NaOH. How many equivalence points the curve should have? Find out the pH at equivalence point? (PK_a = 4.75)

Suppose that you first titrated 25.0 mL of 0.500 M HCL with 0.500M NaOH and then 25.0 mL of 0.500 M of a weark acid HA with 0.500M NaOH.How would the titration curves compare at 10 or 15 ml of NaOH beyond the equivalence points? Explain.

(3) (a) You want to purchase a new car. You are offered a loan for $16,000 with an annual interest rate of 6% and a 36-month repayment period. Use the average balance method to estimate the total amount you will pay over the 36 months for this $16,000 car loan? Round to the nearest dollar.

Alicia is purchasing groceries. She bought tomatoes: for $2.54, apples for $3.53 and pretzels for $2.49. Which item was the most expensive? Which items was the least expensive?

Using features, character the natural segment classes consisting of [p t k q] and of [pʰ tʰ kʰ qʰ].

• [p t k q]:
• [pʰ tʰ kʰ qʰ]:

read this and answer the questions