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3 years ago

14

Can I get some help please? It is asking me to click where the three circles intersect. When I do, It tells me that I’m wrong. 1

2 points for the best answer! (And Brainliest!)

1 answer:

Anit [1.1K]3 years ago

5 0

Answer:

Jefferson

Explanation:

they all come to that

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How many Joules are there in 55 nutritional calories?

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Answer:

230.12

Explanation:

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3 years ago

Suppose a sodium hydroxide solution was standardized against pure solid primary standard grade KHP. If 0.4798 g of KHP required

Readme [11.4K]

Answer:

The NaOH solution has a molarity of 0.052 M

Explanation:

<u>Step 1:</u> Data given

Mass of KHP = 0.4798 grams

Volume of NaOH= 45.22 mL = 0.04522 L

Molar mass of NaOH = 40 g/mol

Molar mass of KHP = 204.22 g/mol

<u>Step 2</u>: Calculate moles of KHP

Moles KHP = mass KHP / Molar mass KHP

Moles KHP = 0.4798 grams / 204.22 g/mol

Moles KHP = 0.00235 moles

<u>Step 3</u>: Calculate moles of NaOH

KHP here acts as a mono-acid so, the number of moles of NaOH = number of moles KHP = 0.00235 moles

<u>Step 4: </u>Calculate molarity of NaOH

Molarity NaOH = moles NaOH / volume NaOH

Molarity NaOH = 0.00235 moles / 0.04522 L

Molarity NaOH = 0.052 M

The NaOH solution has a molarity of 0.052 M

6 0

4 years ago

Guys, please help me and tell me how you found the answer!

sergij07 [2.7K]

Answer:

The First one is: 0.563atm

The second one is: 1.692atm

Hope this helps!

Explanation: Look at Photo Attached

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4 years ago

What mass of ni2 is produced in solution by passing a current of 67.0 a for a period of 12.0 h , assuming the cell is 85.0 % eff

Crank

<span>The mass of ni2 that is produced in solution by passing a current of 67.0 A for a period of 12.0 h and the cell is assumed as 85.0 % efficient is 766 Grams Ni. The answer to the question that was given above is 766 Grams Ni.</span>

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4 years ago

Describe the life of a damselfly

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Life Span. The life span of damselflies varies between species and within species depending on environmental factors. After one to three weeks, the eggs, laid in water, usually hatch, releasing the larvae or nymphs, but eggs laid in late summer may overwinter before hatching.

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4 years ago