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Describe how you would prepare a 500 mL of a solution which is 0.500 M sodium and 1.60 M phosphate if you only had sodium chloride and potassium phosphate available? NOTE: The chloride and potassium ion concentrations in the final solution are unimportant. ANSWER OPTIONS: A) Add 14.61 g NaCl and 169.78 g of potassium phosphate to 500 mL graduated cylinder and fill to the 500 mark. B) Add 5.75 g of NaCl and 76.0 g of potassium phosphate to a 500 mL volumetric flask and fill with distilled water to the mark. C) Add 14.6 g of NaCl and 170. grams of potassium phosphate to a 500 mL volumetric flask and fill with distilled water to the mark. D) Add 14.6 g of NaCl and 170. grams of potassium phosphate to a 500 mL graduated cylinder and fill to 500 mLs.
a physician wrote a prescription for tylenolreg 325 mg5 ml with codeine 10 mg5 ml liquid 5 ml three times a day x 4
After a quantity of NO2(g) is injected into the mixture, the total pressure jumps to 812 torr. Calculate the new partial pressures after equilibrium is re- established.
Exactly 100 mL of 0.10 M nitrous acid (HNO2) are titrated with a 0.10 M NaOH solution. Calculate the pH for the following. (a) the point at which 80 mL of the base has been added
In analysis of interhalogen activity, 0.110 mol of ICl was placed into a 1.00 L flask and allowed to decompose at a high temperature: 2 ICl(g) I2(g) + Cl2(g) Given that Kc = 0.361, calculate the equilibium concentration of I2
suppose 45.0g of water at 85 C is added to 105.0 g of ice at 0 C. The molar heat of fusion of water is 6.01 kJ/mol, and teh specific heat if water is 4.18 J/g C. on this basis of these data (a) what will be the final temperature of the mixture and..
Which solution will have the lowest boiling point?
The statements in the following multiple choices deal with the relationship between solute concentration and various colligative properties. Choose the statement which is true.
The weight of the product (Hexaphenylbenzene) for this part of the reaction was 2.04 g. What is the percentage yield? What is the overall percent recovery for the three step process?
How many grams of heavy water are required to produce 145.0 mg of ND3(g). The mass of deuterium, D, is 2.014 g/mol
a gas is placed in a storage tank at a pressure of 20.0 atm at 20.3 c. as a safety device there is a small metal plug
when 50.0 g of Copper are reacted with silver nitrate solution Cu + 2AgNo3 - Cu(No3)2 +2 Ag 148 g of silver are obtained. what is the percent yeild of silver obtained?
Which of the following statements correctly define SI base units and derived units in science? SELECT ALL THAT APPLY. 1. Derived units are nonmetric units. 2. The base units are the same as the decimal prefixes. 3. All that base units are metric u..
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