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RideAnS [48]
3 years ago
13

This summer, many tourists taking selfies with buffalo were injured in Yellowstone National Park. If buffalo can run 40.00 miles

per hour, what is that in meters per second?
Chemistry
1 answer:
charle [14.2K]3 years ago
7 0

Answer : The speed in meters per second is 17.89 m/s

Explanation :

The conversion used from miles to kilometer is:

1 mile = 1.61 km

The conversion used from kilometer to meter is:

1 km = 1000 m

So, 1mile=\frac{1.61km}\times \frac{1000m}{1km}=1610m

The conversion used from hour to second is:

1 hr = 3600 s

So, 1mile/hr=\frac{1610}{3600}m/s

As we are given the speed 40.00 miles per hour. Now we have to determine the speed in meter per second.

As, 1mile/hr=\frac{1610}{3600}m/s

So, 40.00mile/hr=\frac{40.00mile/hr}{1mile/hr}\times \frac{1610}{3600}m/s=17.89m/s

Therefore, the speed in meters per second is 17.89 m/s

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Determine the molarity for each of the following solution solutions:
____ [38]

Answer :

(a)The molarity of KCl solution is, 0.9713 mole/L

(b)The molarity of H_2SO_4 solution is, 0.00525 mole/L

(c)The molarity of Al(NO_3)_3 solution is, 0.0612 mole/L

(d)The molarity of CuSO_4.5H_2O solution is, 7.61 mole/L

(e)The molarity of Br_2 solution is, 0.0565 mole/L

(f)The molarity of C_2H_5NO_2 solution is, 0.0113 mole/L

Explanation :

<u>(a) 1.457 mol of KCl in 1.500 L of solution</u>

Formula used :

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}

Solute is KCl.

\text{Molarity of the solution}=\frac{1.457mole}{1.500L}=0.9713mole/L

The molarity of KCl solution is, 0.9713 mole/L

<u>(b) 0.515 gram of H_2SO_4, in 1.00 L of solution</u>

Formula used :

\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}

Solute is H_2SO_4

Molar mass of H_2SO_4 = 98 g/mole

\text{Molarity of the solution}=\frac{0.515g}{98g/mole\times 1.00L}=0.00525mole/L

The molarity of H_2SO_4 solution is, 0.00525 mole/L

<u>(c) 20.54 g of Al(NO_3)_3 in 1575 mL of solution</u>

Formula used :

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

Solute is Al(NO_3)_3

Molar mass of Al(NO_3)_3 = 213 g/mole

\text{Molarity of the solution}=\frac{20.54g\times 1000}{213g/mole\times 1575L}=0.0612mole/L

The molarity of Al(NO_3)_3 solution is, 0.0612 mole/L

<u>(d) 2.76 kg of CuSO_4.5H_2O in 1.45 L of solution</u>

Formula used :

\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}

Solute is CuSO_4.5H_2O

Molar mass of CuSO_4.5H_2O = 250 g/mole

\text{Molarity of the solution}=\frac{2760g}{250g/mole\times 1.45L}=7.61mole/L

The molarity of CuSO_4.5H_2O solution is, 7.61 mole/L

<u>(e) 0.005653 mol of Br_2 in 10.00 ml of solution</u>

Formula used :

\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}

Solute is Br_2.

\text{Molarity of the solution}=\frac{0.005653mole\times 1000}{10.00L}=0.0565mole/L

The molarity of Br_2 solution is, 0.0565 mole/L

<u>(f) 0.000889 g of glycine, C_2H_5NO_2, in 1.05 mL of solution</u>

Formula used :

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

Solute is C_2H_5NO_2

Molar mass of C_2H_5NO_2 = 75 g/mole

\text{Molarity of the solution}=\frac{0.000889g\times 1000}{75g/mole\times 1.05L}=0.0113mole/L

The molarity of C_2H_5NO_2 solution is, 0.0113 mole/L

5 0
3 years ago
what is matter that can not be divided into two or more diffrent types of matter by any physical or chemical called/
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Answer an atom

Explanation:

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Which is one way that topographic maps are different from other maps?
anzhelika [568]
One way they are different is that they show elevation
5 0
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Read 2 more answers
The SI base unit for mass is the gram. TRUE FALSE ​
Anni [7]
The answer is true the si base unit for mass is the gram
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Magnesium and nitric acid to give magnesiumnitrate and water balancing equation​
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Balanced equation:

Mg + 2 HNO3 —> Mg(NO3)2 + H2

This is a metal + acid reaction giving salt and hydrogen (not water).
3 0
2 years ago
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