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LekaFEV [45]
2 years ago
9

What is the percent of oxygen by mass in C2H402

Chemistry
1 answer:
Rom4ik [11]2 years ago
6 0

Answer:

53.3 %.

Explanation: C2H4O2. = 2 * 12.011 + 4 * 1.008 + 2 * 15.999. = 60.052.

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How many minutes are in 17 years?
Anarel [89]

Explanation:

8935200 mins plzzzźzzz mark it brainest

3 0
3 years ago
What is the equilibrium constant expression for the ksp of sr3(po4)2?
Eddi Din [679]

The equilibrium constant expression for KSP of Sr3(PO4)2 is


KSP={(Sr^2+)^3 (PO4^3-)^2/ Sr3(PO4)2}


Explanation


write the ionic equation for Sr3(PO4)2


Sr3(PO4)2 → 3Sr^2+ + 2 PO4^3-


KSP is given by (concentration of the products raised to their coefficient /concentration of reactants raised to their coefficient)

7 0
3 years ago
Read 2 more answers
0.22 L of HNO3 is titrated to equivalence using 0.10 L of 0.1 MNaOH. What is the concentration of the HNO3?
White raven [17]

Answer:- Molarity of the acid solution is 0.045M.

Solution:- The balanced equation for the reaction of given acid and base is:

HNO_3+NaOH\rightarrow NaNO_3+H_2O

From the balanced equation, they react in 1:1 mol ratio. So, we could easily solve the problem using the equation:

M_aV_a=M_bV_b

where, M_a is the molarity of acid, M_b is the molarity of base, V_a is the volume of acid and V_b is the volume of base.

Let's plug in the given values in the equation:

M_a(0.22L)=0.1M(0.10L)

on rearranging the above equation:

M_a=\frac{0.1M(0.10L)}{0.22L}

M_a = 0.045M

So, the molarity of the acid solution is 0.045M.

3 0
3 years ago
Which of these activities performed by a chemist is primarily based on an understanding of physics?
Ilia_Sergeevich [38]
<span>predicting the boiling point of a liquid, given its pressure</span>
8 0
3 years ago
Calculate the molarity of a solution containing 5.6 mol of sodium hydroxide dissolved in 2.1 L of water
yKpoI14uk [10]

2.0 MOL is the correct answer I believe


5 0
3 years ago
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