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Calculate the molar concentration of each ion (Na+ and PO4 3-) in a aqueous Na3PO4 solution when 2.0 g of Na3PO4 is dissolved in water so that the final volume of the solution is 150 ml.
Build another molecule of dichloromethane. Is it identical with the first? Why or why not? How many different isomers of dichloromethane, CH2Cl2, are there?
Question- The corona of the sun emits a spectral line at about 677 m due to the presence of an ionized 57Fe atom (molar mass of 0.0569 kg mol^-1). If the line has a width of 0.053 nm, what is the temperature of the corona
Consider the following observations taken on successive, cloudless autumn mornings. On the first day, a considerable amount of frost is on the grass at sunrise. On the second day, only dew appears on the grass. On which day is the temperature incr..
water is to be pumped from a lake to a tank uphill that is open to the atmoshpere. the flow rate of water is 10 liters
The decomposition of hydrogen peroxide is catalyzed by iodide ion. The catalyzed reaction is thought to proceed by a two mechanism reaction
a sample of a gas occupies 1.40 x 103 ml at 25oc and 760 mmhg. what volume will it occupy at the same temperature and
The KHP you used had not been dried. b) When filling the buret with NaOH you left a air bubble in the buret tip.The bubble was released during your first KHP titration.
After combining the hexane extracts as well as evaporating the hexane he had 0.49 g of crystals. Explain what is the theoretical yield and percent recovery
At 699 K, deltaG = -23.25 kJ for the reaction H2(g) + I2(g) --> 2HI(g). Calculate deltaG for this reaction if the reagents are both supplied at 5.0 atm pressure and the product is at 1.00 atm pressure.
Consider a 0.53 M solution of each of the following salts in distilled water. Will the solution be acidic, neutral, or basic? You may need to reference a table of Ka and Kb Tables values
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
What is the maximum amount of silver chloride that can be formed? IN GRAMS b.What is the FORMULA for the limiting reagent?
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