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The order reads 12,000 units of heparin for your patient. The vial on hand is labeled 10,000 units per cc. How many cc should the patient receive?
Two angles are supplementary. The measure of the smaller angleis one-half the measure of the largeer angle. Find the the degree meausre of the larger angle.
It gives a negative test with Br2/CHCl3, but decolorizes KMnO4. (Both results are correct.) What can you infer about your unknown?
A rectangular piece of paper is folded so that one corner lands on the opposite corner. The crease is as long as the longer side of the rectangle. What is the ratio of the sides of the rectangle?
Prove that the formula for the sum of the measures of the interior angles of a n-gon is 180(n-2) or 180-360 (Polygon AngleSum?) using a heptagon that can be cut into 7 congruent isosceles triangle.
Nitrogen and oxygen form an extensive series of oxides with the general formula NxOy. What is the empirical formula for an oxide that contains 30.44% by mass nitrogen?
A car is going at a speed of 21.6 km/hr when it encounters a 12.8m long slope of angle 30 degree. The friction coefficient between the road and the tyre is 1/2*0.732. Show that no matter how hard th
Calcium reacts with oxygen to make calcium oxide, CaO. What is the maximum mass of CaO(s) in grams that could be prepared from 9.12 g of Ca(s) and 2.03 g of O2(g)?
An equilateral triangle has vertices at (0,0) and (6,0) in acoordinate plane. What are the coordinates of the third vertex? Youmay want to sketch it out.
If the student would like this investment to be worth $1,000,000 in 45 years, what annual interest rate would the account need to pay?
Estimate how many feet by assuming that the sand grains are roughly cube-shaped, each one with an edge length of 0.10 mm Texas has a land area of 268,601 square miles.
The experiment is performed with hexane. A final weight for the gas of 0.31 grams is obtained. What is the value for n to be used in the gas law calculation?
Discuss the mechanism of oscillating reactions using the Briggs-Rauscher or the Belousov-Zhabotinsky reactions as examples.
How many mmol of acetic acid (HC2H3O2) are required to react with the NaOH? If your titration solution is 0.424 M in NaOH, and the endpoint occurs at 13.50 mL of titrant.
In the northern states during winter, "salt" is sprinkled on roads to reduce the formation of ice. What chemical principles are involved in the process?
A titration is performed on 1.3245g of a sample of a diprotic acid that is dissolved in 50 ml of water. if 44.10 ml of .6124 M NaOH is required to reach the end-point, what is the molecular weight o
If the unit of measurement were changed to grams of cholesterol per milliliter of blood, what would a cholesterol reading of 185 kg/dl translate to?
Combustion of a .225g sample of a compound containing only carbon, hydgrogen and oxygen produces .306g water and .561g carbon dioxide. what is the empirical formula of the compound?
Ammonia rapidly reacts with HCl producing ammonium chloride. Calculate the number of grams of excess reactant when 7.5g NH3 reacts with 4.3g of HCl.
The filter used originally weighed 0.4327 grams. After the sample was filtered and dried at 103C to 105C, the filter was weighed again at 0.4396 grams. Calculate the TSS of the sample.
Some diamonds appear yellow because they contain nitrogen compounds that absorb purple light of frequency 7.46 10^14 Hz. Calculate the wavelength (in nm) of the absorbed light.
Potassium chloride is used as a substitute for sodium chloride for individuals with high blood pressure. Identify the limiting reactant and determine the mass of the excess reactant remaining when 7
One metric tonne(t) equals 1000kg. What is the amount of sulfur dioxide produced by a power plant that burns 7.5 million metric tonnes(t) of coal over a year? Assume that the coal is 2.4% sulfur
Assume that you are a chemical engineer attempting to optimize the process CO(g) + 2H2(g) (right arrow) CH3OH(g), what conditions would you use? Explain purpose of each factor by applying Le Chai
The half life of an isotope is 3.15 x 104 years. How many hours will it take for a 4.92 g sample to decay until 1.81 g of the isotope remains? Remember - that there are actually 365.25 days in a yea