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tatyana61 [14]
3 years ago
11

g,Mary placed 1 mL of Sample A (6.3 x 107 CFU/mL) and 1 mL of Sample B (9.5 x 106 CFU/mL) into 8 mL of saline. What are the conc

entrations of Sample A and Sample B in the combined tube following this dilution?

Chemistry
1 answer:
Olegator [25]3 years ago
4 0

Explanation:

Below is an attachment containing the solution.

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A carpet sells for $28.99 a square yard. What is the price of the carpet per square meter?
9966 [12]

It is given that the price of the carpet is $ 28.99 per square yard

Step 1: Convert square yard to square meter

1 square yard = 0.836 square meter

Step 2: Calculate the cost/square meter

Now based on the relation in step (1) we can write

0.836 square meter of carpet costs $ 28.99

Therefore the cost of 1 square meter of the carpet would be

= $ 28.99 * 1 sq meter/0.836 sq meter

= $ 34.68

7 0
4 years ago
Read 2 more answers
Calcium nitrate reacts with sodium phosphate to form sodium nitrate and calcium phosphate. Given 96.1 grams of calcium nitrate w
Bingel [31]
Equation is:

Ca(NO3)2 + Na3PO4 —> NaNO3 + Ca3(PO4)2

Balance it out

3Ca(NO3)2 + 2Na3PO4 —> 6NaNO3 + Ca3(PO4)2

You have 96.1g of Calcium Nitrate

Moles = Mass/Molar Mass

Molar mass of Calcium Nitrate is 164.088 g/mol

96.1g / 164.088 g/mol =0.586 moles

Mole ratio is 3:1

Therefore 0.586/3 moles of calcium phosphate

Moles x molar mass = mass

0.586/3 x 310.18 g/mol = 60.6~g roughly as theoretical yield
5 0
4 years ago
A balanced equation for the dissociation of KI
Ann [662]

Answer:

The balanced equation for the dissociation of KI is

KI →  K⁺ + I⁻

Explanation:

KI is the potassium iodide.

K⁺ comes from the KOH, a strong base, so the cation is the conjugate weak acid and in water it does not react.

I⁻ comes from HI, a strong acid, so the anion is the conjugate weak base and in water it does not react.

K⁻  + H₂O ← KOH + H⁺

I⁻ + H₂O ← HI + OH⁻

That's why the arrow in the reaction is in the opposite direction.

3 0
3 years ago
What percentage of the atmosphere is carbon dioxide?.
stellarik [79]

Answer:

4%

Explanation:

the answer is 4% , hope this help

5 0
2 years ago
Join FAASt G.I.R.L.s<br><br>❤️❤️<br><br>yci-zrip-cwt​
GalinKa [24]

Answer:

uh hi and how are you

Explanation:

4 0
3 years ago
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