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Differentiate gram positive and gram negative bacteria as it pertains to cell wall structure and gram stain result.
Cell wall has different organization in Gram-positive and Gram-negative bacteria. In Gram-positive bacteria the cell wall is represented mainly by peptidoglycan molecule, which is arranged in a number of layers...
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205 gram hydrogen sulfide reacts with 75.0 g oxygen to produce sulfur and water. Find: a) Gram of sulfur formed b) gram of excess reactant used up c) gram of excess reactant that remained unreacted
H2S + O2 --->>H2O + SMolar mass of H2S = 34.1= 205/34.1 = 6.0112 molesMolar mass of oxygen = 31.99875/31.998 = 2.344 molesMole ratio in both cases = 1:1= 2.344+6.0112...
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A flask contains 2.00 moles of nitrogen and 2.00 moles of helium. How many grams of argon must be pumped into the flask in order to make the partial pressure of argon twice that of helium?
You can use the following law for solving this question: PfVf = P1V1 + P2V2 + P3V3 hellip; etc Pf is final pressure of the mixture Vf is Final volume...
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A flask contains 3.00 moles of nitrogen and 3.00 moles of neon. How many grams of argon must be pumped into the flask in order to make the partial pressure of argon twice that of neon?
The partial pressure of individual gas in the gas mixture can be expressed the following way: Pi = Ptotal *xi, Where Pi – is the partial pressure of individual gas...
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air contains 1.3% argon by mass. calculate the mass of liquid air needed to obtain 750000tonnes of argon.
The mass of liquid air needed to obtain 750000 tonnes of argon is 4.28× 10^(13) kg. m (dry air) = 750000 t ×100%/1,3% = 57692307.7 tonnesp ( dry air)=1.292 kg/m^3p...
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Steve races to the nearest taco stand at lunchtime and sees that his pedometer recorded his peak speed at 90.5 cm/s. What was Steve's peak speed in kilometers per hour?
90.5cm/s * 1m/100cm * 1km/1000m * 3600s/1h = 3.26 km/hAnswer: 3.26 km/h
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If you cooled the saturated solution fromm 90c to 30c what mass of solute would come out of the solution per 100g
43,3 g (CuSO4*5H2O)
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Calculate the root mean square of bromine molecule at 23degress Celsius and at 1.00 atm. What is the root mean square of the same gas at 23degrees Celsius and 1.5atm ?? Show working
214.808519 m/s for both pressure
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A train is traveling 200 kilometers per hour. What is that in meters per second. Report your answer with the correct number of significant figures
200 km/h = 200 x 1000 / 3600 =55.5555556 m/s
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The average speed of helium in air at 25°C is 1255 M/S. Convert the speed to miles per hour (1 mile equals 1609.3m)
1255/1609.3 = 0,779842167 mile/s.0,779842167 mile/s x 3600 = 2 807,4318 miles/hour
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