1 answer

You are provided with a 250 mL volumetric flask, deionized water, and solid NaOH. How much...

Question:

You are provided with a 250 mL volumetric flask, deionized water, and solid NaOH. How much NaOH should be weighed out in order to make 250. mL of 0.100 M solution?


Answers

Molarity = weight of solute *1000/Gram molar mass of solute * volume of solution in ml

    0.1    = weight of solute*1000/40*250

Weight of solute = 40*250*0.1/1000

                       = 1gm

weight of NaOH is 1gm

.

Similar Solved Questions

1 answer
Is 45-5 The inverse Laplace transform of F(s) = $?+9 Select the correct answer a. 4cos3t...
is 45-5 The inverse Laplace transform of F(s) = $?+9 Select the correct answer a. 4cos3t - 5sin 31 b. 2cos(2t) - sin (36) c. 2cos4 - 3sin 5t 5 d. 4 cos 3-sin 31 e. 4cos(26) - 5sin (31)...
1 answer
An object of mass mi has with 5/8 of its original speed. What is the mass...
An object of mass mi has with 5/8 of its original speed. What is the mass of the other object in terms of m? (TI6) 2. s to move...
1 answer
1 Margin Transaction Example 3 Initial Margin Requirement-50% 4 5 Want to buy 200 shares at...
1 Margin Transaction Example 3 Initial Margin Requirement-50% 4 5 Want to buy 200 shares at $50 per share 7 Total Value - 200*50- 10,000 NO MARGIN 10 Beginning Price End Price Profi Loss Return on 12 Ul 13 10 -10 20.00% -20.00% 40 15 16 17 18 19 20 21 50% MARGIN Beginning Price End Price Profi Loss ...
1 answer
Question 3 Consider the statement: For any a, beR, if a is rational and b is...
Question 3 Consider the statement: For any a, beR, if a is rational and b is rational then a/b is rational. Write the statement with predicate logic. Then negate the predicate logic statement. Translate your negation into a sentence...
1 answer
Show you work step by step 1. Determine the mole %'s of methanol and water in...
show you work step by step 1. Determine the mole %'s of methanol and water in a sample with 10.0g of water and 25.0g of methanol...
1 answer
For the electromagnetic wave represented by the equations E_y(x, t) = E_max cos(kx + Wt), B_z(x,...
For the electromagnetic wave represented by the equations E_y(x, t) = E_max cos(kx + Wt), B_z(x, t) = -B_max cos(kx + omega t), find the direction of the Poynting vector. in the - y -direction in the +x -direction in the +y -direction in the -x -direction Part B Find the average magnitude of the Poy...
1 answer
The nurse is preparing to administer a loading dose of mirinone to a patient. The health...
The nurse is preparing to administer a loading dose of mirinone to a patient. The health care provider has prescribed 50 mcg/kg, and the patient weighs 198 lb. How many milligrams will the nurse administer? Record your answer using one decimal place. mg...
1 answer
Consider a building 160 m high and 80 m wide. The velocity profile of the wind...
Consider a building 160 m high and 80 m wide. The velocity profile of the wind speed is linear with the maximum velocity at the top 40 m/s. The minimum velocity at the bottom can be considered to be zero. Find the drag on the building if the drag coefficient is 1.3. 5....
1 answer
What quantum numbers specify a 6d orbital?
What quantum numbers specify a 6d orbital?...
1 answer
Question 5 In this question we will compare how much money the movies “Avatar”, “Titanic" and...
Question 5 In this question we will compare how much money the movies “Avatar”, “Titanic" and "Gone with the Wind". Avatar, which came out in 2009 made $2.788 billion dollars; Titanic, which came out in 1997, made $2.186 billion and Gone with the Wind, which came out in...
1 answer
Historically, mental health care was provided in institutions after a patient was "committed." This practice was...
Historically, mental health care was provided in institutions after a patient was "committed." This practice was changed as the result of the federal government suing states for the damage done to patients physically, mentally and regarding their freedom and rights. How do you describe state...
1 answer
(In c++) Write a void function that receives an unsigned integer value and displays the hex...
(In c++) Write a void function that receives an unsigned integer value and displays the hex representation of value. You must use bit manipulation techniques. Note that you must convert the hex value for each 4 bits starting at the right side. The hex value for 0 to 9 is the same digit. The hex valu...
1 answer
How is a hardware failure such as memory fault different than an interrupt from the hard...
How is a hardware failure such as memory fault different than an interrupt from the hard disk controller signaling that a data transfer has completed? (Three or four sentences are sufficient)...
1 answer
Which of the following is true about a 0.200 mol sample of nitrogen gas and a...
Which of the following is true about a 0.200 mol sample of nitrogen gas and a 0.200 mol sample of argon gas that are at 1.20 atm and an initial temperature 55.0°C when the temperature changes to 400 K? Assume constant volume for the container under both of these temperature conditions. The densi...
1 answer
How do you solve #x^3 + 4x^2 - x=0#?
How do you solve #x^3 + 4x^2 - x=0#?...
1 answer
Assume that Simple Co. had credit sales of $250,000 and cost of goods sold of $150,000...
Assume that Simple Co. had credit sales of $250,000 and cost of goods sold of $150,000 for the period. Simple uses the aging method and estimates that the appropriate ending balance in the Allowance for Doubtful Accounts is $3,000. Before the end-of-period adjustment is made, the Allowance for Doubt...