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- What is the concentration of a stock solution if a 1 in 14 dilution has a concentration of 40 mg/ ml (Remember: 1 in 14 means 1 part solvent in 14 parts total)?
- How many grams of glucose would you need to make 250ml of a 6% solution?
- If 6g of NaCl is dissolved in 1L of solution, what percent concentration is prepared?
On the gas chromatography graph, 3 peaks will result along with the fourth peak being the starting material, which is suppose to be a small peak. What factors could contribute to the starting material peak to be very large
The earth has a radius of about 6.35 *10^6 m and a mass of 5.98 *10^24 kg. What would be the radius if the earth had the same mass density as matter in a nucleus
If the trend in second ionization energy for the elements from lithium to flourine isn't a smooth one. Forecast which of these electrons has the highest second ionization energy as well as which has the lowest and explain.
0.33g of koh is dissolved in 350.0ml of ethanol and 1.45g of c2h5i is dissolved in 350.0ml of ethanol. assuming the
For the following reaction, 5.21 grams of nitrogen gas are allowed to react with with 5.51 grams of hydrogen gas.nitrogen (g) + hydrogen (g) ammonia (g),What is the maximum amount of ammonia that can be formed.
A solution is prepared by mixing 87.0 mL of 5.00 M HCl and 36.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+ ], [OH - ], and the pH for this solution.
If 2.45 g of X reacts with 6.55 g of M to produce 11.25 g of a compound with the formula M2X3, and the atomic mass of M is 42.0 amu, what is the atomic mass of X
Calculate the composition of the following two buffer solutions. Each buffer is to begin with 0.10M ethanolamine (pka 9.50) and is also to contain acetic acid (pka 4.76). One buffer (buffer A) is to be PH 5.00, the other buffer (Buffer B) 9.26.
for the voltaic cells that you measured that used silver and copper provide the reaction that represents the voltage
How many grams of ice at -9.4 can be completely converted to liquid at 6.2 if the available heat for this process is 5.96×103? For ice, use a specific heat of 2.01 and = 6.01.
Determine the quantity of unknown protein that has an absorbance of 0.227 when a blank has an absorbance of 0.081. The previously determined calibration curve has the form of a straight line with the equation A = 0.0182 × m 0.007
Magnesium oxide (MgO) has the rock salt crystal structure and a density of 3.58 g/cm3. Determine the unit cell edge length.
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