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1) 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric flask and made to 250.0 mL. The Ka for HCO3 - is 4.7 x 10-11.
a) What is the pH of the resulting buffer?
b) What is the pH of solution after 20.00 mL of 0.050 mol L-1 hydrochloric acid solution is added to 25.00 mL of the original solution?
c)What is the pH of the resulting buffer after 0.040 g of solid sodium hydroxide is added to 25.00 mL of the original solution?
2) Plan how you would make 100.0 mL of a buffer solution with a pH of 10.80 to be made using only sodium carbonate, sodium hydrogen carbonate and water.Youshould specify the amounts of sodium carbonate and sodium hydrogen carbonate that you would use. ( the ration acid to base is 3:1)
What else can I help you with?
What does an antacid change in the pH process?
The pH increase with the help of an antacid.
What is the role of buffers in the human body systems?
Buffers resist pH changes in cell cytoplasm, and in extracellular fluids.
What are the acceptable ranges for PH?
pH ranges from 1 (acid) to 14 (base). As far as acceptble range, you need to make clearer what else you need to know...like pH range of blood.
How does pH value of solution help to predict nature of solution?
An acidic solution has a pH under 7 and a basic solution has a pH over 7.
What is the calculation in finding the pH of a L solution to which has been added W ml of MM acetic acid and W ml of MM sodium acetate?
pH = pKa + log [sodium acetate]/[acetic acid] = Henderson Hasselbalch equation
Formula for calculation pH and pOH?
pH + pOH =14
Will baking soda help lower pH?
Yes, baking soda is a basic compound (pH above 7) so it can help raise the pH of a solution rather than lower it. If you need to lower the pH, you would typically use an acidic compound like lemon juice or vinegar.
Mixed equal volumes of HCl one with pH 4.0 and the other pH 6.0 what is the final pH?
The final pH would be less than 5 because the stronger acid (pH 4.0) would have a greater effect on the overall pH than the weaker acid (pH 6.0). To calculate the exact final pH, you would need to know the exact concentrations of the two solutions and perform a Henderson-Hasselbalch calculation.
I have pH 7mm mag mam 40217 and need a clip can you help me?
Try e-gunparts.com
What is the relationship between pH and Dissolved Oxygen?
i dont know i need help with this question as well
If I increase alkalinity in my pool will that increase pH?
Increasing alkalinity in your pool can help stabilize the pH level, but it doesn't directly increase the pH. Alkalinity acts as a buffer against pH fluctuations, so having the right alkalinity level can help prevent rapid changes in pH. If your pool's pH is low, you would need to add pH increaser (such as soda ash) separately to raise the pH.
What would you have tot do to control the pH of the water in the aquarium?
You will need to test the PH, KH & GH to find out whether your water is soft or hard. If your PH changes easily in the tank, then you can add crushed coral to help it rise and be stable, or peat moss to help it lower and be stable
Will buffer pH help with odder in discharge?
will buffer ph help with odd in discharge
When is pH used?
you can use ph when you need it
How do you get the pH up in a lagoon?
You need a pH-paper or a pH-meter.
Do most pool cleaning companies do ph testing?
Yes, it is common for the company cleaning your pool to also check the ph and help you with any corrections that need done to the chemicals.
What would you neutralize an acid with a pH of 3?
To neutralize an acid with a pH of 3, you would need to add a base with a pH higher than 3. Bases have pH values above 7, so adding a base with a pH higher than 3 will help neutralize the acid and bring the pH closer to 7, which is considered neutral.
