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What do you do to the exponent of a number in scientific notation, when you shift the decimal to the left or to the right?
Suppose you have two solutions to titrate with NaOH: (a) 10mL of 0.1 M HCl and (b) 10 mL of 0.1 M CH3COOH.
For the reaction 2HCl+Na2CO3 →2NaCl+H2O+CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP?
Explain how a disaccharide is formed from 2 monosaccharide molecules, hence explaining the difference in the chemical formulae
Visualize whats happening at the molecular level and explain how your products wind up in the Hickman's collection well. What would happen if you placed the Hickman above the water condenser?
The diameter of Earth at the equator is 7926.381 mi. Round this number to three significant figures, and express it in standard exponential notation.
If you have a sample of a gas at 25.0 oC and at a pressure of 4.5 atm, what will the pressure be if the temperature is raised to 50.0 oC?
a mixture of methane ch4 and ethane c2h6 is stored in a container at 294 mmhg. the gases are burned in air to form co2
A 149-mL bubble of hot gases at 217°C and 1.70atm escapes from an active volcano What is the temperature, in °C, of the gas in the bubble outside the volcano if the new volume of the bubble is 169mL and the pressure is 0.793atm ?
At 300. K and 1.20 atm, assume that 30. mL of NO gas reacts with 25 mL of oxygen gas and excess water to produce gaseous nitric acid according to the following equation:
How many times faster is the catalyzed rate versus the uncatalyzed rate? In other words, by what factor/coefficient do you have to multiply the uncatalyzed rate to equal the catalyzed rate? Assume the temperature is 298 K.
In photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
if the solubility of a gas is 7.5 gl at 404 kpa pressure what is the solubility of the gas when the pressure is 202
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