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A force on a 5.0 kg body increases its speed uniformly from 2.0 m/s to 8.0 m/s in 3.0 seconds. What is the initial momentum of the body?
What mass of H2C2O2 is required to prepare 250 mL of a 0.15 M H2C2O4 solution
calculate the values of ?Ho, ?So, and ?Go for the reaction at a pressure of 1 atm and temperature of 298.15 K. C(graphite) + H2O(g) = CO(g) + H2(g)
Sometimes redox reactions happen differently in acidic or basic solutions. Explain, in your own words, the difference in how you balance a reaction in acidic solution and basic (alkaline) solution.
72.0 mL of a 1.40 M solution is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 161 mL of water. What is the final concentration.
What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
Treatment of a 0.4g sample of impure KCl with an excess of silver nitrate resulted in the formation of 0.7332g AgCl. Compute the percentage of KCl in the sample.
What would be the potential in volts of a standard hydrogen (S.H.E.) electrode under the following conditions?:
Wine goes bad soon after opening because the ethanol (CH3CH2OH) in it reacts with oxygen gas (O2) from the air to form water (H2O) and acetic acid (CH3COOH) , the main ingredient of vinegar. What mass of oxygen gas is produced by the reaction of 8..
To a buffer solution containing 0.100M of HNO2 and 0.150M of KNO2 with calculations determine if the added amount of the following compounds exceeds its buffer capacity.
After treating an antacid with 5.00 ml of .1065 M NaOH, the untreated acid was diluted to exactly 250 mL with distilled water in a volumetric flask. 25.00 mL of that diluted acid required 17.03 mL of the same NaOH solution to neutralize it. Calcul..
Show the mechanism for each step of the following reaction scheme- 3-methyl-1-pentene in CH2Cl2 treated with HBr, then NaOH, 1/3 mol equivalent of BH3?tHF and then H2O2/NaOH
electrolysis of an alkaline earth mtal cloride using a current of 5.00 a for 748 sec. deposits .471g of metal at the
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