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Tina is looking out a window and throws marble straight downward toward the sidewalk below at a speed of 4.00 m/s and the window is 38.0 meters above the sidewalk.
What is the speed of the ball (vf) when it hits the ground?
After 1.50s, how far down has the marble traveled?
Driving across Death Valley
calculate the pressure of the dimer when the total pressure is .725 atm at equilibrium. 2ch3cooh(g) (ch3cooh)2(g) Monomer Dimer
how many milliliters of a 0.0987 m solution of cenh4?2no3?6 will it take to titrate 26.9 ml of a 0.0745 m solution of
Ethylene glycol, HOCH2CH2OH, is effective as an antifreeze, but it also raises the boiling temperature of automobile coolant, which helps prevent loss of coolant when the weather is hot. a. What is the freezing point of a 50.0% solution of ethylen..
A human piece of pottery is dated at 16,750 years old by using carbon-14. Explain how many half lives have passed since the pottery was make. Define what would the percentage of thorium- 232 (parent compound) be in a rock that was dated at 1.4 bill..
Write a net ionic equation for the reaction that occurs when sodium sulfite (aq) and excess nitric acid (aq) are combined. Note: Sulfites follow the same solubility trends as sulfates.
A sample of pure NO2 is heated to 338 degrees C at which temperature it partially dissociates according to the equation
78 mL of 2.5 M phosphoric acid is neutralized with 500 mL of potassium hydroxide. What is the concentration of the base?
Consider the following equation: 2HF (g) H2 (g) + F2 (g) k+ 1.00 x 10 ^-2. Given that 1.00 mol of HF(g) ,0.360 mol of H2(g) , and 0.750 mol of F2(g) are mixed in a 5.00-l flask, determine the reaction quotient,Q Q=?
2 g of a mixture of carbonate , bicarbonate and chlorides of sodium on heating produced 56 ml of CO2 at NTP. 1.6 g of the same mixture required 25 mlof N HCl S solution for neutralization. Calculate % of each component present in mixture.
Question- Calculate the pH at the equivalence point for the titration of 0.100 M methylamine (CH3NH2) with 0.100 M HCl. The Kb of methylamine is 5.0× 10-4.
Calculate the volume of reagent required for each reaction in this lab sequence, assuming the tarting mass of copper used is 1.00g. Concentrations of reagents are
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