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3 years ago

What is the ratio of hydrogen atoms to oxygen atoms in a water molecule?

2 answers:

6 0

2 hydrogen molecules to one oxygen molecule
Remember by H2O since O doesn’t have a number after it you know there is only one oxygen molecule

ArbitrLikvidat [17]3 years ago

5 0

Answer:

The ratio of hydrogen atoms to oxygen atoms is 2 to 1.

Explanation:

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EDTA EDTA is a hexaprotic system with the p K a pKa values: p K a1 = 0.00 pKa1=0.00 , p K a2 = 1.50 pKa2=1.50 , p K a3 = 2.00 pK

mihalych1998 [28]

Answer:

Check the explanation

Explanation:

When,

pH = -log[H+] = 3.30

[H+] = $5.0 X 10^{-4} M$

$Ka1 = 1 ; Ka2 = 0.0316 ; Ka3 = 0.01 ; Ka4 = 0.002 ; Ka5 = 7.4 X 10^{-7} ; Ka6 = 4.3 X 10^{-11}$

$alpha[Y^-4] = [H+]^6 + Ka1[H+]^5 + Ka1Ka2[H+]^4 + Ka1Ka2Ka3[H+]^3 + Ka1Ka2Ka3Ka4[H+]^2 + Ka1Ka2Ka3Ka4Ka5[H+] + Ka1Ka2Ka3Ka4Ka5Ka6$

= $1.56 X 10^{-20} + 3.12 X 10^{-17} + 2 X 10^{-15} + 4 X 10^{-14} + 1.6 X 10^{-13} + 2.34 X 10^{-16} + 2 X 10^{-23}$

= $2.02 X 10^{-13}$

When,

pH = -log[H+] = 10.15

[H+] = $7.08 X 10^{-11} M$

Ka1 = 1 ; Ka2 = 0.0316 ; Ka3 = 0.01 ; Ka4 = 0.002 ; Ka5 = $7.4 X 10^{-7}$ ; Ka6 = $4.3 X 10^-11$

$alpha[Y^{-4}] = [H+]^6 + Ka1[H+]^5 + Ka1Ka2[H+]^4 + Ka1Ka2Ka3[H+]^3 + Ka1Ka2Ka3Ka4[H+]^2 + Ka1Ka2Ka3Ka4Ka5[H+] + Ka1Ka2Ka3Ka4Ka5Ka6$

= $1.26 X 10^{-61} + 1.8 X 10^{-51} + 8.1 X 10^{-43} + 1.12 X 10^{-34} + 3.17 X 10^{-27} + 3.3 X 10^{-23} + 1.83 X 10^{-23}$

= $5.12 X 10^{-23}$

4 0

3 years ago

Can someone please help me answer these questions and I’ll give you brainlest!!!!!

pickupchik [31]

Explanation:

first of all open the menu

5 0

2 years ago

What energy is it when you flip on a switch on a lamp

Natalka [10]

Electric energy converted to light energy

3 0

3 years ago

Which of the following is an example of physical change

BartSMP [9]

A physical change is like freezing water and it turns into Ice.

8 0

2 years ago

Read 2 more answers

Sodium is reacted with chlorine to produce sodium chloride. How much sodium chloride is produced when 45 grams of sodium reacted

77julia77 [94]

Answer:

114.7g

Explanation:

Given parameter:

Mass of Na = 45g

Unknown:

Mass of produced NaCl = ?

Solution:

The reaction equation is shown below;

2Na + Cl₂ → 2NaCl

Now, we solve from the known to the unknown. The known here is the mass of Na and it is sufficient to solve the problem;

Number of moles = $\frac{mass}{molar mass}$

Molar mass of Na = 23g/mol

Number of moles = $\frac{45}{23}$ = 1.96moles

2 mole of Na produced 2 moles of NaCl

1.96 moles of Na will produce 1.96 moles of NaCl

Mass of NaCl = number of moles x molar mass

= 1.96 x [23 + 35.5]

= 114.7g

5 0

3 years ago