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kondaur [170]
2 years ago
14

22.2 g of LiCiO4:3H2O in 125 mL of solution

Chemistry
1 answer:
PSYCHO15rus [73]2 years ago
6 0

Answer:

Molarity: concentration measured by the number of moles of solute per liter of solution 3)

Explanation:

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We know that one mole of Oxygen gas contains two moles of O atoms (remember that O is a diatomic element in nature and is writte
tatiyna

Answer:

12.4 × 10∧3 atoms

Explanation:

Given data:

moles of oxygen molecule= 1.0000 x 10-20 mol

atoms =?

Solution:

32 g O2 = 1 mol = 6.02 × 10∧23

1.0000 x 10∧-20 mol × 6.02 × 10∧23 × 2 = 12.4 × 10∧3 atoms

6 0
4 years ago
Nitrate salts (NO3), when heated, can produce nitrites (NO2) plus oxygen (O2). A sample of potassium nitrate is heated, and the
Lostsunrise [7]

Answer: a) 0.070 moles of oxygen were produced.

b) New pressure due to the oxygen gas is 2.4 atm

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 2.7 atm

V = Volume of gas = 700 ml = 0.7 L

n = number of moles = ?

R = gas constant =0.0821Latm/Kmol

T =temperature = 329 K

n=\frac{PV}{RT}

n=\frac{2.7atm\times 0.7L}{0.0821 L atm/K mol\times 329K}=0.070moles

Thus 0.070 moles of oxygen were produced.

When the 700 mL flask cools to a temperature of 293K.

PV=nRT

P=\frac{nRT}{V}

P=\frac{0.070\times 0.0821\times 293}{0.7}

P=2.4atm

The new pressure due to the oxygen gas is 2.4 atm

7 0
4 years ago
In each scenario, which solute, A or B, will dissolve the fastest? Scenario 1 Scenario 2 Scenario 3
dlinn [17]

Scenario 1: B

Scenario 2:A

Scenario 3:B

5 0
3 years ago
Read 2 more answers
Using the evidence provided, generate a pattern that describes the chemical reactivity of metals.
Afina-wow [57]

Answer:

B)As you go from left to right, reactivity of metals increases. As you go down in a group, reactivity of metals decreases.

Explanation:

reactivity of metals can be explained as how it can easily lose electron, i.e oxidize as well as reaction with non-metals.

There are factors that influence the reactivity of metals such as

1)atomic radius

2)nuclear charge

3)shielding effect

4) The sublevel arrangement of electrons

In the periodic table,the group 1, known as alkali metals, are the most reactive metals

Therefore, as we from left to right, reactivity of metals increases. As we move down in a group, reactivity of metals decreases.

7 0
4 years ago
Are points A, B, and C collinear? How do you know?
r-ruslan [8.4K]
In general, three points A, B and C are collinear if the sum of the lengths of any two line segments among AB, BC and CA is equal to the length of the remaining line segment, that is, either AB + BC = AC or AC +CB = AB or BA + AC = BC. This is from google so make sure to paraphrase
8 0
4 years ago
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