Answer the following conversion questions
What weight of NaCl does one need to prepare 100 mL of 500 ppm Na+? Note 1ppm Na+= 1mg Na+/L of solution.
What weight of LiBr does one need to prepare 100 mL of 120 ppm Li+?
Answer the following conversion questions What weight of NaCl does one need to prepare 100 mL...
Suppose you need to prepare 125.5 ml of a 0.256 M aqueous solution of NaCl. What mass of NaCl do you need to use to make the solution? Answer:
QUESTIONS: EXPERIMENT 13 Date_3-23-20 1. What mass of FeCl3 is required to prepare 100 mL of 0.250 M FeCl, solution? answer 2. What volume (in mLs) of 1.50 M Na CO, solution can be prepared from 3.975 g of solid Na2CO,? answer 3. What volume (in mLs) of 12.0 M HCl solution is required to prepare 500 mL of 0.100 M HCI solution by dilution? answer 132
For Experiment 2 you need to prepare a 10X dilution of a 100 mM NaCl stock solution (Mr 58.44). What is the concentration of the dilution in mg/mL?
please answer questions 2 and 3 QUESTION 2 What mass of NaCl is needed to prepare 100.0 mL of 0.500 M NaCl solution? O 0.856 g O 0.342 g O 2.92 g O 1.17 g QUESTION 3 What volume of 5.00 M NaOH stock solution is needed to prepare 100.0 mL of 0.250 M NaOH solution? O 0.200 mL 0 12.5 mL 5.00 mL 80.0 mL Click Save and submit to save and submit. Click Save an Anen
2. What is the molarity of a solution in which 38.7 g of NaCl is dissolved in enough water to make a total of 1.00 L of solution? answer 3. What is the molarity of a solution in which 10.0 g of AgNO3 is dissolved in 500. mL of solution? answer 4. How many grams of K2SO4 would it take to make 1.50 L of a 0.500 M solution? answer 5. Calculate the % (m/V) of a 0.0600 L solution...
What Molarity of NaCl would give a 300mOsm solution so as to be isotonic to ECF and ICF Set up and solve for X: (cross multiply) 300 mOsm X 2000 mOsmTM Try this on your own, then read on. Show work here: You should have an answer of 0.15 M. If you don't: please ask for help. You need to be able to get that calculation for the next part. Now find the number of grams per liter needed to...
Instructions: Use the following image to answer the following questions. A solution contains 40 g of NaCl per 100 g of water at 100˚C. Is the solution unsaturated, saturated or supersaturated? A solution contains 50 g of KCl per 100 g of water at 25˚C. Is the solution unsaturated, saturated or supersaturated? A solution contains 10 g of KNO3 per 100 g of water at 30˚C. Is the solution unsaturated, saturated or supersaturated? An 8 oz bottle of Dr. Pepper...
i need hel pwith these three questions ! What is the molarity of NaCl when 3.46 g of NaCl is dissolved in water to form 50.0 mL of solution? Select the correct answer below: O 3.89 x 10 'M O 6.92 M O 1.18 M O 0.173 M FEE Content attribution Question 15 ments Content attribution Question 15 Which is NOT a strong acid? Select the correct answer below: O acetic acid, CH,CO, H O perchloric acid, HCIO, O hydrochloric...
PLEASE ANSWER ALL 10. What volume of 14N H2SO4 is needed to make 500 mL of 3.2M H2SO4 solution? 11. A solution contains 40 g of solute dissolved in 0.5 L of water. What is the percentage of this solution? 12. How many mL of 4M H2SO4 are required to make 1.5L of 0.5M acid? 13. 100mL of 8% NaCl solution contains g of NaCl 14. A liter of 0.95% solution of NaCl contains g of NaCl 15. 2500mL of...
can someone help with #2 150 mL of 10-1-(WA) SDS 1w/veg of solute/100 ml 10g: 100 ml 150 ml 10g) 15g SDS in 150 ml dd Haa (100ml) b. 200 mL of 250mm tris buffer, por 7.5 Tris 1210 g/mol PH 7.5 es pot - 14-7.5 = 6.5 Pka of tris: 205 -> pkb - 14-pka = 5.94 POH pkb + log [ BH"] Balt [B]-* [et] Tel : antilog (6.5-5.94) - 3.631 [4] . 3.631 [8] [BHT] + [b],...