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Manganese makes up 1.3 x 10-4 percent by mass of the elements found in a normal healthy body. How many grams of manganese would be found in the body of a person weighing 183 pounds?
If 1L of .15M NaOH is unprotected from mmol of CO2, what will be its new molarity when it is standardized agains a standard solution of HCl using
Solve an equilibrium problem (using an ICE table) to calculate the of each of the following solutions. 0.15 M HF, and a mixture that is 0.15 M in HF and 0.15 in NaF
a graduated cylinder contains 142 of water. a 15.0 piece of iron density 7.86 and a 19.0 piece of lead are added.
compute the ph of a solution made by mixing eighty grams of nach3coo to 39 grams of ch3cooh and adding in h2o to
what mass of sodium chloride would need to be added to the blood to bring the sodium ion concentration up to 0.140m
thomas poured 25 ml of .60 m hcl into a large bottle. he then added enough water so that the new diluted concentration
A 17.0-g sample of ice at -19.0°C is mixed with 101.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Concentrated HCl was added to a Ca(OH)2 suspension (in water) and the precipitate dissolved. Explain this observation on the basis of a Le Chatelier's shift in the equilibrium.
A solution of I2 was standardized with ascorbic acid. Using a 0.100 g sample of pure ascorbic acid, 25.32 ml of I2 were required to reach the starch end point.
Calculate the volume (in mL) of He collected at STP when 3.60 g of pure 226Ra is stored in a closed container for 135 years.
Draw a Newman projection of the most stable conformation of (2R, 3S)-dibromobutane sighting down the C2-C3 bond.
a sample of 11.0 grams of cacl2 is dissolved in 125 grams of h2o with both substances at twenty five degree celsius.
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