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alisha [4.7K]
3 years ago
6

Please help, I'm struggling with stoichiometry

Chemistry
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

a) HNO3

b) 26.8g (3 s.f.)

c) 1.29g (3 s.f.)

Please see the attached pictures for full solution.

To balance an equation, ensure that the number of atoms for each element is the same on both sides.

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100.mL of a .795 M solution of KBr is diluted to 500.mL. what is the new concentration of the solution?
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Answer:

0.159 M

Explanation:

convert from mL to L then use the equation:

M1V1 = M2V2

rearrange to find M2

\frac{M1V1}{V2} = M2

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2 years ago
How many grams of pure naoh must be used to prepare 10.0 l of a solution that has a ph of 13? __________g?
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40 g NaOH. You must use 40 g NaOH to prepare 10.0 L of a solution that has a pH of 13.

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<em>Step 2</em>. Calculate the concentration of NaOH

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<em>Step 3</em>. Calculate the moles of NaOH

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<em>Step 4</em>. Calculate the mass of NaOH

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8 0
3 years ago
A group of students are measuring how the acceleration of a mass will change due to a force.
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The graph of the plot of acceleration against force is a straight line graph. Option B

<h3>What is the relationship between force and acceleration?</h3>

From the Newton's second law of motion we can derive that; F = ma

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1 year ago
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3 years ago
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Answer: The Note

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