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2 years ago

if a bacterial culture produces 60.0 mL of methane gas at 700.0 mm Hg, what volume would be produced at 760.0 mmHg

1 answer:

6 0

<span>P1 x V1/ T1 = P2 x V2/ T2 works for all gas problems.
In this case the temperature is constant so
P1 x V1 = P2 x V2
700.0 x 60.0 = 760.0 x Answer
700.0 x 60.0/ 760.0 = Answer</span>

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erastova [34]

<em />If 100 brownies require 6 eggs, 5 cups of flour, and 2 sticks of butter. Then, 50 brownies should require half of those required to make 100 brownies. Use ratio and proportion to determine the number of eggs needed:

100/50 = 6/x
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3 0

2 years ago

Express the following in scientific notation 0.000365

d1i1m1o1n [39]

3.65 X 10^-4

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2 years ago

Find the number of moles of the following substances 210 grams of NaHCO3

Triss [41]

The number of moles of 210 grams of NaHCO₃ is 2.5 moles.

<h3>How to find the Number of moles ? </h3>

To calculate the number of moles use the formula

Number of moles = $\frac{\text{Given Mass}}{\text{Molar Mass}}$

Mass of NaHCO₃ = 210 g

Now we have to find the Molar mass of NaHCO₃

= Atomic mass of Na + Atomic mass of H + Atomic mass of C + 3 (Atomic mass of O)

= 23 + 1 + 12 + 3 (16)

= 36 + 48

= 84 g/mol

Now put the value in above formula we get

Number of moles = $\frac{\text{Given Mass}}{\text{Molar Mass}}$

= $\frac{210\ g}{84\ g/mol}$

= 2.5 moles

Thus from the above conclusion we can say that The number of moles of 210 grams of NaHCO₃ is 2.5 moles.

Learn more about the Moles here: brainly.com/question/15356425

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8 0

1 year ago

8. What do you believe: should husbands make decisions for their

Sedaia [141]

Answer:

I personally don't think that they should because women are perfectly capable of making our own decisions.

Explanation:

hope this helps

7 0

2 years ago

Determine the number of moles within a sample of 10g of propane(C3H8). Round your answer to 2 decimal places with proper units.

a_sh-v [17]

Given :

10 gram sample of propane( C₂H₈ ).

To Find :

The number of moles of propane in given sample.

Solution :

Molecular mass of propane, M = (2 × 12) + ( 1 × 8 ) gram/mol

M = 32 gram/mol

We know, number of moles is given by :

Number of moles, n = m/M

n = 10/32 mol

n = 0.3125 mol

Therefore, number of moles in given sample is 0.3125 mol.

7 0

2 years ago