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Suppose that out of a group of 10 coins, 9 of them are "fair" (i.e., they turn up heads 50% of the time). One of them is "unfair"-it gives tails only 35% of the time. Assume that each of the coins is thrown n times and the outcome is plotted on a p chart. Calculate the control limits and n so that the unfair coin will be caught 90% of the time, while the chance of rejecting a fair coin will be at most 1%.
What would be the diameter, in cm, of a uranium round shot which has exactly twice the weight as the iron ball described above? 1 pound = 0.4536 kg.
Problem- What is the molar mass of a material that has a mass of 0.155 g, and in a 250mL aqueous solution, has an osmotic pressure of 35.0 torr at 25oC
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 425 cubic centimeters, and total mass is 4.22 kg. What percentage of the spheres are copper
The problem reads as Pure nitrosyl chloride (NOCL) gas was heated to 240 C in a 1.00-L container. At equilibrium the total pressure was 1.00atm and the NOCL pressure was .64atm. 2NOCL (g) ? 2NO (g) + Cl2(g)
describe the reactant and products of the chemical reaction. Qas the reactant (potato chip) completely consumed? What evidence supports your answer?
A hot air balloon has a volume of 960 l at 18 degrees c. What temp must it be heated to raise its volume to 1200L, assuming the pressure remains constant
The mass of a beaker is 123.2537 g. After carrots were added to the beaker, its mass is 128.2671 g. The sample was then placed in the oven to remove water.
Treatment with chymotrypsin, which cleaves on the carboxy side phenylalanine gave only the tetrapeptide. What is the amino acid sequence for this tetrapeptide?
If the volume of the cylinder is 5500 mL and the pressure of the N2 in it is 2.5 atm. (temperature is 25oC) a. How many moles of nitrogen molecules are in the cylinder
Draw all of the Lewis structures of NO2+ which obey the octet rule and use this Lewis structure or these resonance structures to predict how many covalent bonds connect each oxygen atom in the real structure to the central N atom.
a sample of 40.0 ml of .1 m acetic acid is titrated with .150 m naoh ka 1.8 x 10-5 what volume of naoh is used in the
2ag 4bg -gt 2ab2 gthe process above was analyzed and it was determined that the rate of appearance of ab2g was 2.510-2
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