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- 0.1% w/v = ? mg/100 ml? Only include the number and not any units 2) 0.1% = ? ug/ml? Only include the number and not any units 3) What is the concentration of your stock in ug/ml? Only include the number and not any units 4)The molecular weight of tartrazine is 534.4 g/mole. What is the concentration of your stock solution in mM? Be sure to give your answer in milliMolar to TWO decimal places.What happens when you put 1 tablespoon of oil in water? What happens when you drop soap into the solution? What happens when you take the jar and flip them upside down and back upright GENTLY 5 times? What would happen after 2 minutes?When performing the gram stain, the Crystal Violet solution is composed of 20 mL of 95% ethanol in a final volume of 100 mL. If only 70% ethanol is available, how many mL of ethanol should be added to achieve a final volume of 1,000? Report your answer to 2 decimal places. Perform all calculations in a single step using Excel to avoid accumulated rounding error.
- Two hundred milliliters of 2% acetic acid is needed. How many milliliters of 5% acetic acid are required to make the 2% solution?MULTIPLE CHOICE: Choose the letter of the best answer Please answer all questions correctly 1. The standardization of volumetric solution does not require hydrochloric acid. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 2. In the standardization of its volumetric solution, the primary standard is dried to constant weight, which means drying shall be continued until two consecutive weighings do not differ by more than 0.50 mg. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 3. In the standardization of its volumetric solution, potassium iodide was added to A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 4. Starch is the indicator of choice for these procedures because it forms intense blue coloration with the solution. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E. C and D 5. In the standardization of its volumetric solution, the reaction needs to be…An aqueous hydrochloric acid solution contains 65.0g hydrochloric acid in 500.0 ml solution. What is the N of the solution? What is the chemical equivalents of the solution? What is the equivalent weight of the solution?
- The current definition of driving under the influence of alcohol is .080 % of alcohol in blood (or 0.08 ml of alcohol in blood per 100 ml of blood). The average adult female has 4.7 liters of blood. How many milliliters of alcohol are in the blood of the average adult female when the alcohol level in her blood is .080 %? Beer contains 5.0 % alcohol by volume (or 5.0mL of alcohol in beer per 100 mL of beer). Only 15 % of the alcohol in beer goes directly from the stomach to the blood (or out of 100 ml of alcohol in beer only 15 ml of alcohol ends up in blood). How many milliliters of beer can the average adult female drink and be at the .08 % alcohol level?Density of toluene- 0.86 g/ml Calculate the volume of toluene needed to make 50 mL of a 780 g/mL solution. Round to the nearest microliterHow many microliters of a 904.0 ppm Co2+904.0 ppm Co2+ stock solution are required to prepare 20.00 mL20.00 mL of a 19.0 ng/?L Co2+19.0 ng/μL Co2+ solution? Significant figures are graded for this problem. Be sure you do not round your answers until the very end of your calculations.
- 1) 0.1% w/v = ? mg/100 ml? Only include the number and not any units 2) 0.1% = ? ug/ml? Only include the number and not any units 3) What is the concentration of your stock in ug/ml? Only include the number and not any units 4)The molecular weight of tartrazine is 534.4 g/mole. What is the concentration of your stock solution in mM? Be sure to give your answer in milliMolar to TWO decimal places. 5)What dilution of your stock do you need to get the first standard (100 ug/ml)? Express as 1:x, where x is the fold dilution needed.1) 0.1% w/v = ? mg/100 ml? Only include the number and not any units 2) 0.1% = ? ug/ml? Only include the number and not any units 3) What is the concentration of your stock in ug/ml? Only include the number and not any units 4)The molecular weight of tartrazine is 534.4 g/mole. What is the concentration of your stock solution in mM? Be sure to give your answer in milliMolar to TWO decimal places. 5)What dilution of your stock do you need to get the first standard (100 ug/ml)? Express as 1:x, where x is the fold dilution needed. 6)What weight of tartrazine (in mg) would you need to make up 250 mL of a 2.5 mM solution (MW of tartrazine is 534.4 g/mole)? Give your answer to the nearest whole number. write the number only, not the unitsSolution 0.549*10^-82 is wrong, 0.1098x10^-80 is also wrong. This question is not graded.