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A sample of benzoic acid solution in soda is 0.50% by mass. What is the benzoic acid is present in 150 g solution?
design a program analysis , pseucode and flowchart for question A bank in your town updates its customers’ accounts at the end of each month. The bank offers two types of accounts: savings and checking. Every customer must maintain a minimum balance. If a customer’s balance falls below the minimum balance, there is a service charge of $10.00 for savings accounts and $25.00 for checking accounts. If the balance at the end of the month is at least the minimum balance, the account receives interest as follows: * Savings accounts receive 4% interest. * Checking accounts with balances of up to $5,000 more than the minimum balance receive 3% interest; otherwise, the interest is 5%.
Assuming that the object are on Earth, where acceleration due to gravity is
10N/kg, calculate the gravitational potential energy that they had.
How many ammonia molecules are there in 0.50 ammonia moles? Overall, are these nitrogen and hydrogen atoms present?
Write balanced molecular equations for the following reactions in aqueous solution:
a) calcium + water à calcium hydroxide + hydrogen
b) barium chloride + sodium barium à sulfate sulfate + sodium chloride
In a Daniell stack the following redox reaction occurs:
Zn(s) + Cu2+(aq) à Zn2+(aq) + Cu(s)
a) write the oxidation and reduction semi-reactions , also indicating the electrons at stake and the oxidation numbers of the reactants and products.
b) what reaction would take place in an electrolytic cell?
Determine the moles of solute particles dissolved in 1.0 Kg of water, for the following solutions:
a) CH3CH2OH, 2.0 m; b) KCl, 2.5 m; c) Al2(SO4)3, 1.0 m; d) C12H22O11 (saccarosio), 3.0 m; e) HNO3, 2.0 m
The force stretching a string is proportional to the extension produced. Find the dimensions of the constant of proportionality
Part 1
The volume of a sphere is 4/3πr3, where π has the value of "pi" given in Section 2.1 of your textbook. Write a function called print_volume (r) that takes an argument for the radius of the sphere, and prints the volume of the sphere.
Call your print_volume function three times with different values for radius.
Include all of the following in your Learning Journal:
The code for your print_volume function.
The inputs and outputs to three calls of your print_volume.
Part 2
Write your own function that illustrates a feature that you learned in this unit. The function must take at least one argument. The function should be your own creation, not copied from any other source. Do not copy a function from your textbook or the Internet.
Include all of the following in your Learning Journal:
The code for the function that you invented.
The inputs and outputs to three calls of your invented function.
A description of what feature(s) your function illustrates.
Is element 115 likely to be a metal or a nonmetal?
#339914 on Dec 2023