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Illusion [34]
3 years ago
12

Eric's father asked an engineer to survey the field behind their house. He wanted to plant some apple and pear trees there. Acco

rding to the survey, the field is 38 meters (m) long and 17 meters (m) wide. What is the perimeter of the field in centimeters?
Chemistry
1 answer:
Vsevolod [243]3 years ago
8 0

Answer:

11,000 cm

Explanation:

Step 1: Given data

Width of the field (w): 17 meters

Length of the field (l): 38 meters

Step 2: Calculate the perimeter of the field

The field is a rectangle. We can find its perimeter (P) by adding its sides.

P = 2 × w + 2 × l = 2 × 17 m + 2 × 38 m = 110 m

Step 3: Convert the perimeter to centimeters

We will use the relationship 1 m = 100 cm.

110 m × (100 cm/1 m) = 11,000 cm

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Starting from a 1 M stock of NaCl, how will you make 50 ml of 0.15 M NaCl?
WARRIOR [948]

Answer:

We need 7.5 mL of the 1M stock of NaCl

Explanation:

Data given:

Stock = 1M this means 1 mol/ L

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Step 2: Calculate the volume of stock we need

The moles of solute will be constant

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M1*V1 = M2*V2

⇒ with M1 = the initial molair concentration = 1M

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Since 0.0075 L of 1M solution contains 0.0075 moles

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We need 7.5 mL of the 1M stock of NaCl

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2 years ago
How to do Lewis structure for Al?
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