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Say there is a newly defined "package" called the binkle. One binkle is defined as being exactly 3 × 10^12. A) If you had 1.0 kg of nails and 1.0 kg of helium atoms, would you expect them to have the same number of binkles? Using complete sentences, explain your answer. Note: 500 nails per Kg B) If you had 3.5 binkles of nails and 3.5 binkles of helium atoms, which quantity would have more (count) and which would have more mass?
A chemist adds 295.0mL of a 0.071M potassium permanganate (KMnO4) solution to a reaction flask. Calculate the mass in milligrams of potassium permanganate the chemist added to the flask.
What is the pH of a 0.15 M solution of the weak base ammonia (NH3). The Ka of the conjugate acid is (NH4) is 5.6e-10.
A soluution prepared by dissolving 682 mg of a sugar (a molecular compound and a nonelectrolyte) in 1.00g of water froze at -3.72 degrees C. What is the molar mass of this sugar?
A sample of gas inside a 150 mL piston has an initial temperature of 550 K and pressure of 8.0 atm. As the piston expands to 650 mL, the pressure decreases to 1.5 atm.
determine the concentrationof the original HCl acid solution in units ofa) Molarityb) Percent by mass (Hint: refer to Skill Builder 6 to see the relationship between molarityand percent mass units
A 50.00-mL sample of groundwater is titrated with 0.0800 M EDTA. Assume that Ca2 accounts for all of the hardness in the groundwater. If 12.80 mL of EDTA is required to titrate the 50.00-mL sample, what is the hardness of the groundwater in molari..
At 0.0oC, if the volume of air is 1.5 mL and the pressure of the atmosphere that day is 735 mmHg, what is the number of moles of air?
Determine the concentrations of K2SO4, K , and SO42- in a solution prepared by dissolving 2.11 × 10-4 g K2SO4 in 2.00 L of water. Express all three concentrations in molarity.
The concentration of sulfuric acid in the lead-storage battery of an automobile over a period of time has decreased from 38.0 percent by mass (density = 1.29 g/mL) to 26.0 percent by mass (1.19 g/mL). Assume the volume of the acid remains constant..
A cannonball made of iron has a volume of 115 cm3. If iron has a density of 7.86 g/cm3, what is the mass in grams of the cannonball?
How many quartz of ethylene glycol, C2H6O2 (density = 1.116 g/mL). Will have to be added to 5 gal of water (density = 1 g/mL) to protect an automobile radiator down to a temperature of-10 oF?
The diameter of the cylinder is 0.5m. and the piston height is 1m. a.what is the mass of the weights on the cylinder? b.You heat the gas to 1000k. how high will the cylinder rise? c.How much work will the engine provide?
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