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antiseptic1488 [7]
3 years ago
13

Calculate the average atomic mass of a

Chemistry
1 answer:
Vesna [10]3 years ago
6 0

Answer: 207.217 amu

Work:

203.973 amu *(0.014) = 2.855 amu

205.974 amu *(0.241) = 49.639 amu

206.976 amu *(0.221) = 45.741 amu

207.977 amu *(0.524) = 108.979 amu

2.855 + 49.639 + 45.741 + 108.979 = <em><u>207.217amu</u></em>

Explanation:

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A gas starts out with a volume of 114 liters and temperature of 273 K. The volume then increases to 216 liters. If the pressure
Yuri [45]

Answer:

517.3 K

Explanation:

Initial volume of gas V1= 114 L

Initial temp. T1= 273 K

Final volume V2= 216 L

Final temp. T2= ?

From Charles law, Volume is directly proportional to temperature provided pressure is kept constant

V1/T1 = V2/T2

T2 = V2T1/V1

T2 = (216×273)/114

T2 = 517.3 K

3 0
4 years ago
If a sample of HF gas at 694.9 mmHg has a volume of 3.463 Land the volume is changed to 5.887 L, then what will be the new press
VARVARA [1.3K]

Answer:

\large \boxed{\text{381.7 mmHg}}

Explanation:

Data:

p₁ = 694.9 mmHg; V₁ = 3.463 L

p₂ = ?;                     V₂ = 5.887 L

Calculation:

\begin{array}{rcl}p_{1}V_{1} & = & p_{2}V_{2}\\\text{648.9 mmHg} \times \text{3.463 L} & = & p_{2} \times\text{5.887 L}\\\text{2247.1 mmHg} & = & 5.887p_{2}\\p_{2} & = & \dfrac{\text{2247.1 mmHg}}{5.887}\\\\& = &\textbf{381.7 mmHg}\\\end{array}\\\text{The new pressure of the gas is $\large \boxed{\textbf{381.7 mmHg}}$}

4 0
3 years ago
What is the barometric pressure exerted in pascals (Pa) of a column of decane (density = 0.7300 g/cm3) 636.2 mm in height?
BartSMP [9]
<h3>Answer:</h3>

4551.37 Pascals

<h3>Explanation:</h3>

The pressure refers to the force exerted by a substance per unit area.

The pressure is liquid is calculated by;

P = height × density × gravitational acceleration

In this case;

Height = 636.2 mm

Density = 0.7300 g/cm³

g = 9.8 N/kg

We need to convert mm to m and g/cm³ to kg/m³

Therefore;

Height = 636.2 mm ÷1000

           = 0.6362 m

Density = 0.73 g/cm³ × 1000 kg/m³

             = 730 kg/m³

Then, we can calculate the pressure;

Pressure = 0.6362 m × 730 kg/m³ × 9.8 N/kg

              = 4551.3748 pascals

               = 4551.37 Pascals

Therefore, the pressure of the column of decane is 4551.37 Pascals

5 0
3 years ago
Order the steps of the experiment below according to the scientific method. 4 Paul calculated the average time to dissolve each
MaRussiya [10]

Answer:

Pa

Explanation:

4 0
3 years ago
What is the balanced equation for the nonproductive reaction when lysine is the substrate?
Artyom0805 [142]

The balanced equation for the nonproductive reaction when lysine is the substrate.

                  H⁺ + NADPH + O₂ ======> NADPH⁺ + H₂O₂

Lysine is an natural complement used for athletic overall performance enhancement, or remedy for cold sores and expanded pH . Lysine is probably effective for bloodless sores remedy.

Lysine, is an critical amino acid, which means it is vital for human health, however the body can not make it. you need to get lysine from food or supplements. Amino acids like lysine are the building blocks of protein. Lysine supplements is very secure and does not seem to motive many side outcomes. the majority can take a each day dose of up to a few grams of lysine without any side consequences.

Learn more about lysine here:-brainly.com/question/22661126

#SPJ4

7 0
2 years ago
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