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LUCKY_DIMON [66]
3 years ago
6

You and your friends decide to travel, on foot, to your favorite beach at the Jersey Shore. Your speed for the first part of the

trip is 2.2 mi/hr. Twenty-three minutes after starting your trip, the group decides to stop at a convenience store for a drink. After stopping at the convenience store for five minutes, you continue your travels for 0.9 hour and then stop at a local fast-food restaurant for a bite to eat. You spend 20 minutes eating your favorite burger and 480 seconds after continuing your journey, you stop to use the restroom for 0.5 hr. Now that everyone feels a little lighter, the group increases its speed to 5.5 km/hr and spends the next 900,000 milliseconds traveling to a friend’s beach house to get sun block. After spending five minutes getting the sun block and raiding your friend’s pantry for snacks, the group starts “fist-pumping” in anticipation of their arrival at the beach. Eleven minutes and twenty five seconds later, you and your friends finally feel the warm sand beneath your feet. Approximately how many miles away is the beach?
Chemistry
2 answers:
Juli2301 [7.4K]3 years ago
8 0

Answer:

Sorry dont know

Explanation:

Flura [38]3 years ago
8 0
It is 12:00 and you just heard that local officials are tracking a violent storm heading westward, directly for your town and school. The storm is traveling at 25 km/hr and it is currently 75 kilometers east of your school. If the school day is not shortened, and you remain until two o’clock (the official end of the day), will you and all others in the school get home before the storm hits?

...Your Welcome!!
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How do you count atoms in a chemical formula?
tigry1 [53]

Answer:

To find out the number of atoms: MULTIPLY all the SUBSCRIPTS in the molecule by the COEFFICIENT

Explanation:

3 0
3 years ago
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How many atoms are in 8 grams of helium
Mrrafil [7]
12 x 10^23 atoms, i hope this helps
8 0
3 years ago
The following reaction shows the products when sulfuric acid and aluminum hydroxide react.
SSSSS [86.1K]

Answer:

There will remain 11.47 grams of Al(OH)3

Explanation:

Step 1: Data given

Mass of sulfuric acid = 35.0 grams

Molar mass sulfuric acid = 98.08 g/mol

Mass of aluminium hydroxide = 30.0 grams

Molar mass of aluminium hydroxide = 78.0 g/mol

Step 2: The balanced equation

2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O

Step 3: Calculate moles

Moles = mass / molar mass

Moles Al(OH)3 = 30.0 grams / 78.0 g/mol

Moles Al(OH)3 = 0.385 moles

Moles H2SO4 = 35.0 grams / 98.08 g/mol

Moles H2SO4 = 0.357 moles

Step 4: Calculate the limiting reactant

For 2 moles Al(OH)3 we need 3 moles H2SO4 to produce 1 mol Al(SO4)3 and 6 moles H20

H2SO4 is the limiting reactant. It will completely be consumed ( 0.357 moles). Al(OH)3 is in excess. There will be react 2/3 * 0.357 = 0.238 moles

There will remain 0.385 - 0.238 = 0.147 moles

Mass of Al(OH)3 remaining = 0.147 moles* 78.0 g/mol = 11.47 grams

There will remain 11.47 grams of Al(OH)3

6 0
3 years ago
Can i titrate a solution of unknown concentration with another solution of unknown concentration and still get a meaningful answ
olga2289 [7]

Answer:

No, I don't think so at least

Explanation:

In chemistry, you do calculations to find the concentration of a solution with another solution of KNOWN concentration. Without concentrations of either solution, were would you get values from? Where would you start? :3

6 0
3 years ago
How many moles of Chromium are in 1.410 * 10 ^ 23 atoms of Chromium?
leva [86]

Answer:

<h3>The answer is 0.23 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}  \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{1.410 \times  {10}^{23} }{6.02 \times  {10}^{23} }  \\  = 0.234219...

We have the final answer as

<h3>0.23 moles</h3>

Hope this helps you

4 0
3 years ago
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