1 answer

A chemist mixed some 15% peroxide solution ith some 6% peroxide solution to make 300 ML of a 9% peroxide

Question:

A chemist mixed some 15% peroxide solution ith some 6% peroxide solution to make 300 ML of a 9% peroxide solution. How many milliliters of the 15% solution was used?

Answers

A chemist mixed some 15% peroxide solution ith some 6% peroxide solution to make 300 ML of a 9% peroxide solution. How many milliliters of the 15% solution was used? ---------- Follow the active ingredient. -------------- 15% solution DATA: Amt = x ML ; amt of active ingredient = 0.15x ML --------------- 6% solution DATA: Amt = "300-x"ML ; amt of active ingredient = 0.06(300-x)= 18-0.06x ML ---------------- 9% Mixture DATA: Amt = 300 ML; active = 0.09*300 = 27 ML EQUATION: active + active = active 0.15x + 18-0.06x = 27 0.09x = 9 x = 100 ML (amt of 15% solution needed in the mixture) ============ Cheers, Stan H..

Similar Solved Questions

1 answer
Find W1,W2,T1 and T2. Suppose that the pulleys are frictionless and the system is in equlibrium...
Find W1,W2,T1 and T2. Suppose that the pulleys are frictionless and the system is in equlibrium situation. 4001 50°...
1 answer
Java Write a program that prompt the user to enter a decimal number representing the radius...
Java Write a program that prompt the user to enter a decimal number representing the radius of a circle. If the number is greater or equal to zero, the program displays the area of the circle. Otherwise, the program displays “negative input”...
1 answer
The following table presents the number of police officers (per 100,000 citizens) and the annual murder...
The following table presents the number of police officers (per 100,000 citizens) and the annual murder rate (per 100,000 citizens) for a sample of cities. Police Office (per 100,000) Murde per 100.000 per VI) 37 1352 34 1271 1275 39 1472 1017 52 The correlation coefficient between the per capita nu...
1 answer
Draw motion diagrams for both motions. Describe the motion of the pucks in the following strobe...
Draw motion diagrams for both motions. Describe the motion of the pucks in the following strobe photographs. Assume the pucks move from left to right and do not retrace their paths. O O OO o Where does the ball shown in the following strobe cda...
1 answer
How can molecules with polar bonds be nonpolar?
How can molecules with polar bonds be nonpolar?...
1 answer
Is there any evidence of one or more enol proton(s) being present? why?
Is there any evidence of one or more enol proton(s) being present? why? NMR Interpretation Peaks: Chemical Shift: Multiplicity: Integration: A: 1.1411 ppm A: Singlet A: 2.9954 ppm B: 2.4493 ppm B: MultipletB: 4.2979 ppm C: 5.5723 ppm C: SingletC: 0.5113 ppm D: 7.2616 ppm D: Triplet D: 0.4753 ppm E: ...
1 answer
Henry Long has just learned he has won a $500,600 prize in the lottery. The lottery...
Henry Long has just learned he has won a $500,600 prize in the lottery. The lottery has given him two options for receiving the payments. (1) If Henry takes all the money today, the state and federal governments will deduct taxes at a rate of 46% immediately. (2) Alternatively, the lottery offers He...
1 answer
•P47 A negatively charged iron block is placed in a region where there is an electric...
•P47 A negatively charged iron block is placed in a region where there is an electric field downward (in the -y direction) due to charges not shown. Which of the diagrams (a-f) in Figure 14.88 best describes the charge distribution in and/or on the iron block? + + b a с d f Figure 14.88...
1 answer
Two packages are connected by a massless string that goes over an ideal pulley as shown...
Two packages are connected by a massless string that goes over an ideal pulley as shown in the figure. The string acts on package 10kg parallel to the surface of the plane. The coefficient of static friction between package 10kg and the plane is 0.40. F is a force which can be applied on 10kg packag...
1 answer
14 please. Show working for better understanding 14. How many atoms are in 25.0 grams of...
14 please. Show working for better understanding 14. How many atoms are in 25.0 grams of Al? 15. How many milliliters are in 0.58g of 02 gas at S...
1 answer
When the usefulness of plant assets used to extract natural resources is directly related to the...
When the usefulness of plant assets used to extract natural resources is directly related to the depletion of a natural resource, their costs are depreciated using the units-of-production method of depreciation True or False True False...
1 answer
TB MC Qu. 2-34 (Algo) Giannitti Corporation bases its predetermined... Giannitti Corporation bases its predetermined overhead...
TB MC Qu. 2-34 (Algo) Giannitti Corporation bases its predetermined... Giannitti Corporation bases its predetermined overhead rate on the estimated machine-hours for the upcoming year. Data for the upcoming year appear below: Estimated machine-hours 72,600 Estimated variable manufacturing overhead $...
1 answer
-8. Henri Company's inventory records show the following data: Units Unit Cost Inventory, January 1 10,000...
-8. Henri Company's inventory records show the following data: Units Unit Cost Inventory, January 1 10,000 $9.20 Purchases: June 18 9,000 8.00 November 8 6,000 7.25 A physical inventory on December 31 shows 3,000 units on hand. Henri sells the units for $12 each. The company has an effective tax...
1 answer
2.3 Fire can erupt at random at any point along a stretch of forest AB. The...
2.3 Fire can erupt at random at any point along a stretch of forest AB. The fire station is located as shown in Figure 2.1. Determine the PDF and pdf of X, representing the distance between the fire and the fire station. Sketch these functions Fire station Figure 2.1 Position of the fire station and...
1 answer
4:00 PM / Remaining: 60 min Multiple Choice Question 54 Jack and Jill form a partnership....
4:00 PM / Remaining: 60 min Multiple Choice Question 54 Jack and Jill form a partnership. Jack runs the business in New York, while Jill vacations in Hawaii. During the time Jill is away from the business, Jack increases the debts of the business by $20,000. Which of the following statements is true...
1 answer
Show that three internal angle bisectors of a triangle are concurrent. Suppose we bisect the internal...
Show that three internal angle bisectors of a triangle are concurrent. Suppose we bisect the internal angles of△XYZ. If we extend the lines bisecting the angles inside the triangle, they will eventually meet at a single point. 1. Show that three internal angle bisectors of a triangle are conc...
1 answer
The CPBS division (British Flavors) of Cam Bowles Soup Company is broken down into the following...
The CPBS division (British Flavors) of Cam Bowles Soup Company is broken down into the following 4 soups; Cream of Tomato, Pea and Ham, Roasted Cauliflower & Turmeric, and Smoked Haddock Chowder. The total fixed expenses do not change, and they are allocated to each division proportionally based...
1 answer
Let X1,X2 be two independent exponential random variables with λ=1, compute the P(X1+X2<t) using the joint...
Let X1,X2 be two independent exponential random variables with λ=1, compute the P(X1+X2<t) using the joint density function. And let Z be gamma random variable with parameters (2,1). Compute the probability that P(Z < t). And what you can find by comparing P(X1+X2<t) and P(Z < t)?...