The acidity or alkalinity of a solution is defined by pH = –log[H+] where [H+] is the hydrogen ion concentration, measured in moles per liter. Solutions with a pH value of less than 7 are acidic; solutions with a pH value of greater than 7 are basic and solutions with a pH of 7 (such as pure water) are neutral. a) Suppose that you test apple juice and find that the hydrogen ion concentration is [H+] = 0.0003. Find the pH value and determine whether the juice is basic or acidic.

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Q: You have one kilogram of feathers and one kilogram of lead. Which has the smallest density?

A: Answer Feathers

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Q: How many macrostates are there for tossing 6 coins? Select the correct answer 06 O64 X Your Answer…

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Q: A tank with a capacity of 4000 liters holds 2000 liters of brine that contains 50kg of dissolved…

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Q: While filling up your car with gasoline, you notice that it takes 2 minutes to dispense 15 liters of…

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Q: what coefficient is placed in front of H2O to balance this equation? 2A(OH)3 + 3H2SO4 --> AI2(SO4)3…

A: Given that 2Al(OH)3 + 2H2SO4 ------> Al2(SO4)3 + ______H2O

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Q: In 12.0 g of carbon, there are NA = 6.02 x 10^23 carbon atoms (Avogadro’s number). If you could…

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Q: A tank initially contains 100 gal. of salt solution, where 50 lbs. of salt is added. Salt solution…

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Q: The density of brass is 8.7 ax 10° kg/m. What is the mass of a 3.2 x 10- m3 sample of brass ? O 3.68…

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Q: d sample of that element the length of the cube is 3 cm Write answer to 1 decimal place

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Q: Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin…

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Q: If gasoline has a density of 0.7 g/cm3, find the volume that 2.1 kg will occupy A) 6300 cm3 В) 3000…

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Q: Iron has a density of 6.75 g/cm³. The volume occupied by 44.45 g of iron is

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Q: An average person normally excretes 1,375ml of urine each day. If the density of urine is 1.025g/ml,…

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Q: How many molecules are in 0.044 kg of carbon dioxide, CO2? (atomic masses: C = 12 u; O = 16 u)

A: ...

Q: When equal masses of two substances are mixed, the resultant density is 2.5 g/cm^3. When equal…

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Q: The relative density of a substance is the ____.   A) ratio of its density to the density of water…

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Q: What is the mass of a piece of silver that has a density of 21.9 g/mL and a volume of 22 mL? O1.00 g…

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Q: Find the mass of 250.0 mL of water from Lake Michigan. The density of lake water is 1.00 g/mL. Note…

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