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Genrish500 [490]
3 years ago
7

Wendy is making lemonade. As shown below, Wendy mixes some water

Mathematics
1 answer:
kaheart [24]3 years ago
3 0

Answer:

u no explaining well

Step-by-step explanation:

?

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How many grams of NH3 are required to produce 4.65 g of HF
nignag [31]

1.326 grams of NH3 are required to produce 4.65 g of HF.

Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

NH3 +3 F2 ⇒3 HF  +  NF3

Given:

mass of HF = 4.65

First the number of moles of HF in 4.65 grams is calculated by using the formula:

number of moles (n) = \frac{mass}{atomic mass of 1 mole}

atomic mass of HF = 20 grams/mole

putting the values in the above equation number of moles can be found.

n = \frac{4.65}{20}

  = 0.235 moles of HF are given.

From the equation it can be said that:

1 mole of NH3 reacts to form 3 moles of HF

so, x moles of NH3 would react to form 0.235 moles of HF

\frac{3}{1} = \frac{0.235}{x}

3x = 0.235

x = \frac{0.235}{3}

x = 0.078 moles of NH3 is required.

The moles are converted to mass by applying the formula:

mass = atomic mass X number of moles (atomic mass of NH3 = 17 grams/mole)

        putting the values in the formula

mass = 17 X 0.078

mass = 1.326 grams

8 0
2 years ago
Hello please help i’ll give brainliest
Ivenika [448]

Answer:

Step-by-step explanation:

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8 0
3 years ago
The width of a rectangle measures (s+5t) centimeters, and its length measures (s+2t)centimeters. Which expression represents the
lbvjy [14]

Answer:

4s+14t

Step-by-step explanation:

2*[(s+5t)+(s+2t)]

=2*(2s+7t)

=4s+14t

7 0
2 years ago
Read 2 more answers
1. Andrea is selling candies as a fund-raiser. She spent $50 on supplies for making the candles.
evablogger [386]

Answer:

b domian range

Step-by-step explanation:

-50+?=?

sold for 10 dollars

8 0
3 years ago
Im really struggling with this, i need A on this test please help me!
Molodets [167]

Answer:

150.8 m³

48π m³

Step-by-step explanation:

V = πr²h/3

V = π · 4² · 9/3

150.8 m³

3 0
3 years ago
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