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Question- Use the molar volume of a gas, at STP, to determine the number of moles of H2 in 1620 mL of H2 gas
Please illustrate work as well as walk me during the problem so that I can follow and understand it
As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 75.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
Question- Given that blood exerts the same osmotic pressure as an o.15 M NaCl solution, which of the following could be the contents of the second beaker? 0.008 NaCl or 0.15 or 0.68
The atmospheric activity of 14 C is 15 cpm/gC (counts per minute per gram of carbon). Assume that the cloth was made in the year 24 B.C. The half-life of 14 C is 5730 years. What will be the expected activity of 14 C of this sample
Consider the following reaction: 2 HI(g) -> H2(g) + I2(g) If 3.55 moles of HI(g), 0.550 moles of H2, and 0.630 moles of I2 are at equilibrium in a 1.00 L container at 915 K
a sealed balloon is filled with 1.00 l of helium at 23 degrees celsius and 1.00 atm. the baloon rises to a point in the
00,000 gallon spill of 10 M HCL into 379,000 L lake. Carbonate alkalinity = 150 mg/L CaCO3. Initial pH of lake is 7.50. What is the new pH of the lake after the spill?
How could you determine (without tasting) whether a container of a colorless liquid contained ethanol or ethanol and sucrose
When a solution is formed by mixing solute B with solvent A, the vapor pressure of A falls to 80% of its value for the pure solvent. What is the composition of the solution
The rate of the following reaction is 0.120 M/s. What is the relative rate of change of each species in the reaction
Write the noble gas abbreviation ground state electronic configurations for Ag and for Ag+. which is paramagnetic
The optical rotation of a sample composed of only D-lactose is determined [a]abs = 0.99 degrees. [a]D is known to be 52.3 degrees for D-lactose. If the cell path length was 0.8 dm and the concentration of D-lactose in the sample was 0.17 g/mL,
If 36.0 mL of 0.150 M HCl(aq) is needed to neutralize all the NH3(g) from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
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