Prepare 100 mL of 10 % w/w HCl from 37% concentrated HCl (density of 37% HCl = 1.19 g/ml). Describe how you could prepare 123 mL of a 1.2 M HCl solution from a 2.0 M HCl solution. Describe how to prepare 50 mL of a 0.20 M HCl solution from a 0.50 M HCl so...
A simple nuclear staining takes place for 10 minutes at room temperature with Hoechst or DAPI diluted in PBS. After completing the IF procedure, the samples must be mounted to be suitable for microscopy. For this purpose a mounting medium (e.g. Mowiol or Prolong Gold) is used which fixes ...
How much concentrated 12 M HCl is needed to prepare 200 ml of a 2.5 M solution? How many milliliters of concentrated HCl (12 M) are needed to prepare 3.0 L of 0.10 M HCl? What volume (mL) of...
To prepare 5M HCl, the dilution ratio we need is 5/12 = 0.416. So, we need 0.416 parts fuming HCl and 0.584 parts water to generate 5M HCl. In simple lab-friendly terms, this means diluting 42 mL of fuming HCl into 58 mL of water to generate 100 mL of our final 5M HCl. Here’...
In a fume hood place the sapphire disks in concentrated hydrochloric acid (HCl 30%) for 2 h. Wash the sapphire disks 3x for 5 min with doubly distilled (dd) H20. Let the sapphire disks dry on filter paper afterwards. After the cleaning process, a finder grid pattern needs to be...
You have 100 mL of a 12 M solution of HCl, and you need to dilute it to 1.5 M for an experiment. How many liters will your new solution be? How many mL of a 3.19M solution must be diluted to 1.24L to make a 0.204M solution?
How many grams of Na2CO3 should be dissolved in 250 g of water to prepare 0.1 m solution? View Solution A buffer solution is prepared by mixing 10ml of 1.0M acetic acid & 20ml of 0.5M sodium acetate and then diluted to 100ml with distilled water. If the pKa of CH3COOH is 4.76. What...
How many mL of 6.00 M NaOH solution would be required to prepare 2.50 L of 0.0100 M NaOH by dilution? A 50.0 mL sample of vinegar (density = 1.06 g/mL) was diluted to 500.0 mL. Titration of a 50.0 mL aliquot of this solution required 42.5 mL...
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M HCl (aq) is needed to prepare 725.0mL of 1.00 M HCl (aq)? Creating Dilutions:In the lab, creating dilutions with accurate molarity helps minimize systematic error. To do so, we usually measure out the required standard solution using a volumetric pipette and ...