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MaRussiya [10]
3 years ago
14

Please answer asap !! 7 divided by 4/6

Chemistry
2 answers:
ipn [44]3 years ago
5 0

Answer:10.5

IF I GOT IT RIGHT PLS GIVE ME BRAINLIEST

Law Incorporation [45]3 years ago
5 0

Answer:

10.5

Explanation:

Since you're dividing by a fraction, you multiply by the reciprocal. So it would be 7/1 * 6/4, which gives you 42/4. When you reduce, you get 10 1/2 or 10.5

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E

Explanation:

E

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To create hydrogen and oxygen from water, you would need to perform which type of reaction?
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Dahasolnce [82]

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3 0
3 years ago
Calculate the rate constant, k k , for a reaction at 60.0 60.0 °C that has an activation energy of 80.1 80.1 kJ/mol and a freque
djverab [1.8K]

Answer:

0.24 s-1

Explanation:

We first list the parameters as shown in the image attached. The variables are now properly substituted. This equation is used to calculate the rate constant and clearly show us the dependence of the rate constant on temperature. From this equation, we can clearly and easily see that the rate constant increases exponentially with increase in temperature of the reaction system.

7 0
4 years ago
What is the molarity of a solution that is 26.0% by mass in phosphoric acid, H3PO4, and that has a density of 1.155 g/mL?
steposvetlana [31]

Answer: The molarity of a solution that is 26.0% by mass in phosphoric acid is 3.06 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

n = moles of solute

V_s =volume of solution in ml

Given : 26.0 g of phosphoric acid in 100 g of solution.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{26.0g}{98g/mol}=0.265moles

Volume of solution =\frac{\text {Mass of solution}}{\text {Density of solution}}=\frac{100g}{1.155g/ml}=86.6ml

Molarity=\frac{0.265\times 1000}{86.6ml}=3.06M

Molarity of a solution that is 26.0% by mass in phosphoric acid is 3.06 M

8 0
4 years ago
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