Calculate the % Oxygen in NaHCO3

Answer:

Volume of O₂ = 56 dm³

mass of water vapors (H₂O) = 90 g

Explanation:

Data Given:

mass of Oxygen = 10 g

Volume of Oxygen = ?

mass of the water vapor = ?

Reaction Given:

                 2H₂+O₂---->2H₂O

Solution:

First we have to look at the reaction for the information required

                 2H₂   +  O₂  -------> 2H₂O

               2 mol    1mol           2 mol

now convert moles to grams

molar mass of H₂ = 2(1) = 2 g/mol

molar mass of O₂ = 2(16) = 32 g/mol

molar mass of H₂0 = 2(1) + 16 = 18 g/mol

So the masses will be

                      2H₂          +              O₂        ------->      2H₂O

                2 mol (2 g/mol)      1mol (32 g/mol)         2 mol (18 g/mol)

                      4 g                            32 g                           36 g

So now we know that

4 g of hydrogen combine with 32 g of Oxygen and give 36 g of water vapors.

By using above information

First we find the volume of Oxygen:

For this first we find mass and then moles of Oxygen

As we know

if 4 g of hydrogen combine with 32 g of Oxygen then how much oxygen will react with 10 g of hydrogen

Apply unity formula

                        4 g of hydrogen H₂ ≅ 32 g of Oxygen O₂

                         10 g of hydrogen H₂ ≅ X g of Oxygen O₂    

by doing Cross multiplication

                         g of Oxygen O₂   = 32 g x 10 g / 4 g

                         g of Oxygen O₂   = 80 g

So,                  

mass of oxygen = 80 g

now find moles of oxygen

formula used:

            no. of moles = mass in grams/ molar mass . . . . . . (1)

Put values in above equation 1

            no. of moles = 80 g / 32 g/mol

             no. of moles = 2.5

Now to find volume of oxygen

Formula used

 Volume of O₂ = no. of moles x molar volume (22.4 dm³/ mol) . . . . . . (2)

Put values in equation 2

             Volume of O₂ = 2.5 moles x 22.4 dm³/mol

            Volume of O₂ = 56 dm³

______________________

Now to find mass of water vapors

As we now

if 4 g of hydrogen produce 36 g of water vapors then how much water vapor will produce from 10 g of hydrogen

Apply unity formula

                        4 g of hydrogen H₂ ≅ 36 g of water vapors (H₂O)

                         10 g of hydrogen H₂ ≅ X g of water vapors (H₂O)  

by doing Cross multiplication

                         g of water vapors (H₂O) = 36 g x 10 g / 4 g

                         g of water vapors (H₂O)   = 90 g

So,                  

mass of water vapors (H₂O) = 90 g

Answer:

Due to the lack of context for your question I’m not completely sure which you are talking about but NH can be Imidogen or it could be ammonium which is NH4^1+

pH of the blood have to be balanced always. Otherwise it will cause disorders in metabolic activities. Enzymes in our body are working at their optimum pH, if the blood pH is imbalanced, it will affect the functions of enzymes.

What is pH?

pH is the measure of H+ ion concentration in a solution. It measures how much acidic or basic the solution is. A pH of 7 implies the solution is neutral and pH greater than 7 is alkaline or basic and less than 7 is acidic solutions.

Mathematically pH is the negative logarithm of H+ ion concentration. Thus as the H+ concentration is higher higher will be the acidity of the solution.

Human blood have a normal pH of 7.35 - 7.45. This level of pH is maintained by the carbonate ions in blood. Any imbalance if occur in blood pH it will affect the metabolic activities.

Enzymes are bio-catalysts in our body and they are having an optimum pH and temperature to function. Therefore, an irregularity in pH of blood will affect the function of enzymes which clot blood. Thus option a is correct.

To find more about pH, refer the link below:

brainly.com/question/491373

#SPJ2

Answer:

enzymes that clot blood

Explanation:

This is because enzymes are pH sensitive so sudden changes in pH levels make the enzymes non-functional. Therefore, here the enzymes that clot blood will fail if the pH of blood changes due to failure of regulation.