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Salinity is a term much used in water conservation and is defined as the total mass in grams of salts dissolved in a 1-kg water sample. you are told to prepare a solution of 75 parts per thousand salinity (75 g of salts per kg of solution) to test the effect on food crops of irrigating farmland with high salinity river water. the solution contains twice as many moles of dissolved NaCl as dissolved mgso4, and three times as many moles of LiCl as NaCl. These are the only solutes. what masses of NaCl, MgSO4, and LiCl are contained in 7500 kg of this solution?
What is the molar concentration of free (uncomplexed) Ag+ in solution when 4.25g AgNO3 is dissolved in 100.0 mL 1.00 M NH3 aqueous
When adding ethylene glycol to your cooling system, it is usually mixed 50:50 by volume. This will prepare a 52.7 mass % solution. Convert this concentration to molality and predict the freezing point depression
After purifying your product, you collect 8.69 g. Calculate the percent yield of the alum.
keisha wants to measure how the temperature of a gas affects its volume. explain which variable she should change which
Imagine that you have a 6.50L gas tank and a 2.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
Explain, why you used sulfuric acid in the experiment, not HCl. (3) Give the structures and names (including description of stereochemistry) of three alkenes produced in dehydration of 3-methyl-3-pentanol.
if it takes 526 j of energy to warm 7.40 grams of water by 17 degrees celsius how much energy would be needed to warm
Calculate the boiling point of a solution prepared by dissolving 70.0 g of naphthalene, C10H8 (a nonvolatile nonelectrolyte), in 220.0 g of benzene, C6H6. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
which of the following obey the octet rule beh2 ccl3 seo2 2- pcl3 krcl2 no2? and if they do not obey the octet rule
calculate the number of excess reagent units remaining when 41 C2H4 molecules and 102 O2 molecules react?
Separation of a standard solution containing 207 mg of pentanol and 233 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.920:1.00. Calculate the response factor, F, for 2,3-..
if the temperature of the aqueous ammonium chloshyride system in part b were to be increased to 30c predict how the
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