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Ivenika [448]
3 years ago
5

What is a speed of 55 mph equivalent to in units of m/s? (1 mile = 1609 m, 1 hour = 3600 s)

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
3 0

Answer:

24.58 m/s

Explanation:

Given that,

Speed of an object = 55 mph

We need to find the equivalent unit in m/s

We know that,

1 mile = 1609 m

1 hour = 3600 s

So,

55\ mph=\dfrac{55\times 1609\ m}{3600\ s}\\\\=24.58\ m/s

So, the required speed is 24.58 m/s.

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Why is the krebs cycle also known as the citric acid cycle.
ololo11 [35]

Answer:

Krebs cycle is known as citric acid cycle because the citric acid is the first product formed in Krebs cycle. This cycle is also known as TCA cycle because the first product (citric acid) formed in Krebs cycle is a tricarboxylic acid (TCA).

4 0
2 years ago
Can someone please show me how to do problem number 4? Please show work so I can try to understand it. Thanks!
larisa86 [58]
With the given formula, we can calculate the amount of CO₂ using the balance equation but we first need the moles of CH₄

1) to find the moles of CH₄, we need to use the ideal gas formula (PV= nRT). if we solve for n, we solve for the moles of CH₄, and then we can convert to CO₂. Remember that the units put in this formula depending on the R value units. I remember 0.0821 which means pressure (P) has to be in atm, volume (V) in liters, the amount (n) in moles, and temperature (T) in kelvin.

PV= nRT

P= 1.00 atm
V= 32.0 Liters
n= ?
R= 0.0821 atm L/mol K
T= 25 C= 298 K

let plug the values into the formula.

(1.00 x 32.0 L)= n x 0.0821 x 298K

n= (1.00 x 32.0 L )/ (0.0821 x 298)= 1.31 moles CH₄

2) now let's convert the mole of CH₄ to moles to CO₂ using the balance equation

1.31 mol CH₄ (1 mol CO₂/ 1 mol CH₄)= 1.31 mol CO₂

3) Now let's convert from moles to grams using the molar mass of CO₂ (find the mass of each atom in the periodic table and add them)

molar mass CO₂= 12.00 + (2 x 16.0)= 44.0 g/mol

1.31 mol CO₂ ( 44.0 g/ 1 mol)= 57.6 g CO₂

Note: let me know if you any question.



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The law of multiple proportions is..
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Answer:  SiO2 + 4HF = SiF4 + 2H2O

Explanation:

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7 0
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