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3 years ago

A police car drives with a constant speed of 58 miles per how long will it take to travel a distance of 29 miles

Chemistry

1 answer:

astra-53 [7]3 years ago

5 0

Answer:

It takes 2 hours for a police car to travel a distance of 29 miles with 58 miles per hour.

Explanation:

The speed of the car is 58 miles per hour.

The total distance traveled is 29 miles.

We need to find the time taken to cover the distance of 29 miles by the police car if police traveled at 58 miles per hour.

We know that,

Relationship between speed, time and distance is $speed=\frac{distance}{time}$

Now substitute the given values in the above formula,

$58=\frac{29}{time}$

$time=\frac{29}{58}$

Time = 2 hours.

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3 years ago

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vladimir1956 [14]

Answer:

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3 years ago

in an experiment 3.5g of element A reacted with 4.0g of element G to form a compound Calculate the empirical formula for this co

kolezko [41]

Additional information

Relative atomic mass(Ar) : A=7, G=16

The empirical formula : A₂G

<h3>Further explanation</h3>

Given

3.5g of element A

4.0g of element G

Required

the empirical formula for this compound

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.

The empirical formula also shows the simplest mole ratio of the constituent elements of the compound

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$\tt mol=\dfrac{mass}{Ar}\\\\mol=\dfrac{3.5}{7}=0.5$

mol of element G :

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3 years ago

Read 2 more answers

Calculate the mass of 0.00456 moles of (NH4)2SO4

Anna [14]

To find the mass you need to find the weight of a mol of the molecules by adding up the atomic mass.

N = 14.007 g/mol
H = 1.008 g/mol
S = 32.065 g/mol
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2(14.007) + 8(1.008) + 32.065 + 4(16) = 132.143 g/mol

Now you know how much an entire mol weight you multiply it by how much you actually have

0.00456 * 132.143 = 0.603 g

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3 years ago