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A solution made by dissolving 9.81 g of a nonvolatile nonelectrolyte in 90.0 g of water
boiled at 100.37
oC at 760 mm Hg. What is the approximate molecular weight of the
substance?
Answer the following questions IN YOUR OWN WORDS please dont copy paste
1. Vitamin D, a fat-soluble vitamin, is an important agent in maintaining our bones healthy. Because of its purpose, Vitamin D supplements are taken by people in considerable amounts. Explain why people should only take Vitamin D supplements in regulated amounts and not in large quantities.
2. Patrick boils a 7-Up beverage. What will happen to it? Explain in terms of temperature as a factor affecting the solubility of gases in liquids.
3. Bien bought a bottle of Mountain Dew. He has an upcoming exam and unintentionally shakes the bottle out of nervousness. What will happen when he opens the bottle? Explain why that will happen in terms of Henry's Law.
The vapor pressures of pure toluene and pure benzene at 25°C are 13.5 and 95.2 mmHg, respectively. A solution is prepared in which the mole fractions of toluene and benzene are 0.4 and 0.6, respectively. What are the partial pressures of the benzene and toluene above this solution? What is the total pressure of the solution?
An LPG tank contains 11.0 kg of butane gas, (C4H10), in a 25.0 L gas tank. What must be the pressure of the gas inside the tank when the temperature is 25 DEGREES CELCIUS?
What would be the pressure of 1.5 moles of Oxygen gas in a vessel with a volume of 5.0 L and temperature of 24 DEGREES CELCIUS?
The fermentation of glucose produces ethanol and carbon dioxide as follows: C6H12O6 --> 2C2H5OH + 2 CO2. How many grams of ethanol will be produced when 4 grams of glucose reacts in this fashion? (The molar mass of glucose is 180 g/mol while ethanol is 46 g/mol).
Mustard gas is a poisonous gas that was used in World War 1 and banned afterward. It causes general destruction of body tissues, resulting in the formation of large water blisters. The chemical formula for mustard gas is C4H8Cl2S. What is the molecular mass of mustard gas?
Your lab partner accidentally mixed some sodium chloride with your sample of Epsom salts (MgSO₄･7H₂O). You want to make a standard solution of magnesium ion, and this is the only sample of a magnesium salt you have. To determine the amount of magnesium salt in the mixture, you heat 100.00 g to drive off the water of hydration and find that the anhydrous mixture has a mass of 65.75 g. What is the mass in grams of the original salt mixture that you must add to 1.000 L of water to make a 0.1000 M solution of Mg²⁺ ion?
How many moles of ammonia are in .4L of a 3.0 M aqueous ammonia solution? If this solution is diluted to 1.0 L, what will be the molarity of the new solution?
What is the formula for ns2np4 would form in potassium
