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MAVERICK [17]
3 years ago
14

What is the concentration of hcl in the final solution when 65 ml of a 12 m hcl solution is diluted with pure water to a total v

olume of 0.15 l?
Chemistry
1 answer:
Gre4nikov [31]3 years ago
6 0
<span>First I converted 0.15L in to mL (150mL) Then, (1.5M)*(65mL)=X *(150mL) (1.5M)*(64mL)/(150mL)=0.65M Answer;3.4 x 10^-2 M</span>
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What is the mass in grams of 85.32 mL of blood plasma with a density of 1.03 g/mL?
Aleksandr [31]
Mass=density x volume, i.e. 1.03 x 85.32 = 87.88 g
5 0
4 years ago
Name:_____________________________________________________ Date:___________ Period:_________ 3/23 - 3/27 Assignment 1: Gas Law P
crimeas [40]

Answer:

The answers are;

1. 8.2 liters

2. 1214.84 ml

3. 318.027 K

4. 4.00 l.

Explanation:

1. Boyle's law states that the volume of  given mass of gas is inversely proportional to its pressure at constant temperature

that is

P₁·V₁ = P₂·V₂

Where:

P₁ = Initial pressure = 40.0 mm Hg

V₁ = Initial volume = 12.3 liters

P₂ = Final pressure = 60.0 mm Hg

V₂ = Final volume = Required

From P₁·V₁ = P₂·V₂, V₂ is given by

V_2=\frac{P_1\cdot V_1}{P_2} = \frac{40.0 mm Hg\cdot 12.3 l}{60.0 mm Hg} =  8.2 l

The volume reduces to V₂ = 8.2 liters

2. Here Charles law states that

\frac{T_1}{V_1} =\frac{T_2}{V_2}

T₁ = Initial temperature = 27.0 °C = 300.15 K

V₁ = Initial volume = 900.0 mL

T₂ = Final temperature = 132.0 °C = 405.15 K

V₂ = Final volume = Required

Therefore  V_2 =\frac{T_2\cdot V_1}{T_1} = \frac{405.15 K\times 900.0 mL}{300.15 K} = 1214.84 ml

V₂ = 1214.84 ml

3.  Gay-Lussac's Law states that

\frac{T_1}{P_1} =\frac{T_2}{P_2}

Where:

P₁ = Initial pressure = 15.0 atmospheres

T₁ = Initial temperature = 25.0 °C = 298.15 K

P₂ = Final pressure = 16.0 atmospheres

T₂ = Final temperature = Required

∴ T_2 = \frac{T_1\times P_2}{P_1}

=  \frac{298.15 K\times 16.0atm}{15.0atm} = 318.027 K

T₂ = 318.027 K

4. Avogadro's law states that,

Equal volume of all gases at the same temperature and pressure contain equal number of molecules.

Therefore if 5.00 moles of gas occupies 2.00 l volume, then

1 moles will occupy 2.00/5 l volume and

10 moles will occupy 2.00/5 × 10 or 4.00 l volume.

6 0
4 years ago
C,H,O,+ 3HCI → C,HCl, + 3H20<br> right 5 possible mole ratios
Marina86 [1]

Answer:

Here's what I get  

Explanation:

I think this may be the equation you intended to write:

C₃H₅(OH)₃ + 3HCl ⟶ C₃H₅Cl₃ + 3H₂O

The mole ratios are the ratios of the coefficients in the balanced equation.

Here are some of the possible molar ratios.  

  1. C₃H₅(OH)₃:HCl        = 1:3
  2. C₃H₅(OH)₃:C₃H₅Cl₃ = 1:1
  3. C₃H₅(OH)₃:H₂O       = 1:3
  4.           HCl:C₃H₅Cl₃ = 3:1
  5.           HCl:H₂O       = 3:3
  6.    C₃H₅Cl₃:H₂O       = 1:3

4 0
3 years ago
Which two factors are essential for a molecule to be considered polar? nonpolar bonds and asymmetrical structure, nonpolar bonds
timama [110]

A nonpolar molecule is entirely symmetric. For a molecule to be nonpolar, it must have at least a linear, trigonal planar, or a tetrahedra shape. However, that’s not totally enough. For the molecule to be completely symmetric, aside from having a symmetric shape, all of the atoms that are connected to the central atom must be alike. Therefore, symmetry has two components, they are the geometric arrangement of the outer atoms and whether or not they are all the same.

Fundamentally, non-uniform or it is the uniform, distribution of electrons that ascertains if a molecule is polar or nonpolar, but this distribution is established by the dispersal and distinctiveness of the atoms in a molecule.  


4 0
3 years ago
Read 2 more answers
Identify the independent variable and the dependent variable in each of the following hypothesis.
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Answer:

independent variable is the carbon dioxide

dependent variable is the rate of photosynthesis.

Explanation:

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