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A car's radiator has a capacity of 15 quarts and it currently contains 12 quarts of a 30 percent antifreeze solution. How many quarts of pure antifreeze must be added to strengthen the solution 40 per?
The original solution has 3.6 quarts of antifreeze in it. The equation then becomes (3.6 + x)/(12 + x) = 0.40, where x is the amount of antifreeze added. X is then equal to 2.
How do you round 000.2 percent to the nearest tenth of a percent?
000.2 percent, which is the same as 0.2 per cent, is already rounded to the nearest tenth of a per cent.
What is 7 percent per annum on 164300?
11501 per annum.
On a blueprint a square with 20 meters per side was shown as a square with 12 centimeters per side how long would a girder appear on the blueprint if the girder was actually 15 meters long?
Since 12 cm is .12 m the scale is .12/20 = .006 . Meaning on the graph 1 m is represented by .006 m or .6 cm. So 15 m would be scaled down to 15 x .6 = 9 cm on the graph.
How many inches per foot in a 2 percent slope?
Oh, dude, you're hitting me with some math now? Okay, okay. So, a 2 percent slope is like 2 inches of rise per 100 inches of run. And since there are 12 inches in a foot, you just divide 100 by 12 to get around 8.3 feet per foot on a 2 percent slope. Math is fun, right?
How many parts per million are in a one percent solution?
10,000 ppm
How many parts per million of a solute is present in a solution that is 3 percent by mass?
30,000ppm
How much water added to convert a 10 percent solution to 02 percent solution?
add 4 parts water per part solution
How many mg per ml in a twenty percent solution?
A 20% solution would mean 20 g of the substance in 100 ml of solution. To convert this to mg per ml, you would have 20,000 mg of the substance in 100 ml of solution. Therefore, in a 20% solution, there would be 200 mg per ml.
Five quantitative ways to describe the composition of solutions?
Molarity: the concentration of a solution in moles of solute per liter of solution. Molality: the concentration of a solution in moles of solute per kilogram of solvent. Mass percent: the percentage of the total mass of a solution that is contributed by the solute. Volume percent: the percentage of the total volume of a solution that is contributed by the solute. Parts per million (ppm): the concentration of a solution in parts per million by weight.
How many mg per ml of saline in 9 percent saline?
There are 90 mg of saline per 1 ml of 9% saline solution.
How many grams of a drug must be used to prepare 2 liters of a 1 percent solution?
1% solution = 1 gram per 100 mL, 10 grams per liter 20 grams
How many grams in 1 percent solution?
A 1% solution normally contains 1 gram of active ingredient per 100 ml of solution (weight-volume percent) Could also be 1gm per 100 gms (weight-weight percent)- but normally weight-volume is used.
If you need a 1 percent solution how many ounces do you need to add per gallon?
There are 128 ounces in a gallon. One percent of that is 1.28 ounces, or approximately one and one quarter ounces.
How can you express the solution in percent by volume?
Per cent by volume means mls of solute per 100 mls solution. So you need to know the volume of the solute and the total volume of the solution. Divide volume of solute by volume of solution and multiply by 100 to get per cent by volume.
What formula do you use to find a solution stregth?
Your question doesn't have a single answer. In Chemistry solution strength is usually calculated in moles pe liter of mole per kilogram or as a mole fraction ( moles per mole) but can also be mass per liter, mass per mass, volume per volume, percent by mass, or percent by volume.
Which is more concentrated 5 percent NaHCO3 or 5M NaHCO3?
5M NaHCO3 is more concentrated than 5 percent NaHCO3. Molarity (M) measures the concentration of a solution based on the number of moles of solute per liter of solution, whereas percent concentration is based on the mass of the solute per 100 parts of the total solution.
