Analyze the partial pressure of ozone
Analyze the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0°C and738 mmHg, respectively. On a smoggy day in a certain city the ozone concentration was 0.36 ppm by volume.
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Determine what average force is essential to bring a 49.5 kg sled from rest to a speed of 3.2 m/s in a period of 19.6 s? Suppose frictionless ice.
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If the phosphorus is present as phosphate, PO43-, determine the corresponding molar concentration of phosphate. Phosphorus is present in the seawater to the extent of 0.07 ppm by mass.
1 hour later a second bus leaves same station, traveling east at the rate of 48 mile per hour. At what time will two buses be 274 miles apart?
Determine the mathematical equation which represents the solubility product when the insoluble compound Fe2S3 is dissolved in the water?
It takes the freight train 2 hours longer to travel 200 miles than it takes the express train to travel 280 miles. Rate of express train is 20 miles per hour greater than rate of freight train. Determine times and rates of both trains.
The actual reaction mixture is 63% KClO3, 31%Sb2S3, and 6% P4, which means there is a slight excess of both potassium chlorate and phosphorus.
68% of students at a university live on campus. A random sample found that 24 of 40 male students and 43 of 55 of female students live on campus. At 0.05 level of significance, is there sufficient evidence to support claim that the difference exis
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