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You assumed that the acceleration of your body was constant during the time that you were pushing off the ground. Was it actually constant? Explain. if your answer is "yes", describe the change in acceleration as your feet leave the ground. If your answer is "no", is assuming a constant acceleration a reasonable approximation? Explain.
The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
What amount of H2 (in moles) is needed to inflate it to 1.0 atm in an ambient temperature of 25°C at sea level?
What is the pressure inside the system when the stopcocks are opened. Assume that the lines connecting the bulbs have zero volume and that the temperature remains constant.
What mass of Mg(OH)2 will dissolve in 1.0 L of 0.050 mol/L solution of MgSO4(aq)
Give a technical explanation as to why AM radio stations are much more susceptible to noise and interference compared to FM radio stations. 2. Modern technology has given us satellite radio. With 100+ stations and availability across the country, it ..
What is the root mean square velocity of helium at 40 C? How does this compare to the escape velocity of an object from Earth's gravity?
a 25 ml sample containing cu2 gave an instrumentsignal of 23.6 units corrected for a blank. when exactly 0.5 mlof
If 5.0L of nitrogen at 12 degrees Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure
What are the values of Delta H degree and Delta S degree for dissolution of PbI2? PbI( s) rightarrow Pb^(2 +) ( aq) + 2 I^( -) (aq) You may assume that Delta H and Delta S are independent of temperature
What will happen when a HCl (aq) solution is added to a Na2CO3 (aq) solution? Explain and give the molecular and net ionic equations for the reaction.
In combustion studies of H2 as an alternative fuel, you find evidence that the hydroxyl radical (HO) is formed in flames by the following reaction
Mixing 25.0mL of 1.2 M HClO4 and 25.0mL of 1.1M NaOH were mixed. The temperature of the preliminary solution was 22.4'C. Presuming a Heat of Neutralization of 55.8 KJ/mol, define what would the final temperature be if the specific heat for this so..
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