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zhuklara [117]
4 years ago
9

In a titration, 10.0 ml of 0.0750 M HCl(aq) is exactly neutralized by 30.0 ml of KOH(aq) of unknown concentration. What is the c

oncentration of the KOH(aq)solution?
Chemistry
1 answer:
Sphinxa [80]4 years ago
4 0

Answer: 0.0250

Explanation: 10 X 0.0750 = .75

.75 / 30 = 0.0250 M

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Electrons are found _____ of the atoms and have _____ charge
Basile [38]

Answer:

shell and negative

Explanation:

atoms have two parts the necules part and the shell part electron found on the shell

7 0
4 years ago
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To what volume would you need to dilute 200 mL of a 5.85M solution of Ca(OH)2 to make it a 1.95M solution?
Blizzard [7]

Answer: 600 mL

Explanation:

Given that;

M₁ = 5.85 m

M₂ = 1.95 m

V₁ = 200 mL

V₂ = ?

Now from the dilution law;

M₁V₁ = M₂V₂

so we substitute

5.85 × 200 = 1.95 × V₂

1170 = 1.95V₂

V₂ = 1170 / 1.95

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8 0
3 years ago
a chemical company makes pure silver by reacting silver nitrate with Zinc. the company needs to make 800 grams of pure silver fo
shutvik [7]

The reaction between zinc and silver nitrate is

Zn + 2 AgNO3 \rightarrow  Zn(NO3)2 + 2 Ag

Moles of Zn = m /M = 599 /65 = 9.2 mol

Moles of AgNO3 = m /M = 1500 /169 = 8.87 mol

Silver nitrate is reacting completely to give silver

Thus, moles of Silver nitrate is equivalent to silver = 8.87

For mass of silver produced

m /M = 8.87 = m /107

m = 949.24 g

Hence, the given quantity of reactants are sufficient to produce 800 g of silver as the amount of silver produced is 949.24 g

3 0
4 years ago
The formation of frost on a cold windowpane is an example of which of the following?
Ad libitum [116K]
I think the correct answer from the choices listed above is option B. The formation of frost on a cold windowpane is an example of condensation. This process involves the phase change from the vapor phase to the liquid phase. 
3 0
3 years ago
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A student determines the volume of a cube to be 4.6 cm?
pav-90 [236]

Answer:

6.98%

Explanation:

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Actual value= 4.3 cm

% error = |4.6-4.3|/4.3 × 100

% error = 6.98%

6 0
3 years ago
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