2 years ago

What holds more salt warm or cold water?

1 answer:

5 0

Salt water is salt mixed with fresh water. However, salt in cold water does not dissolve as well as if the water is warm. Warm water has more room between the water molecules, allowing more salt to fit. Cool water molecules are tighter together and will not allow much salt to dissolve

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A solution is prepared by mixing the 50 mL of 1 M NaH2PO4 with 50 mL of 1 M Na2HPO4. On the basis of the information, which of t

barxatty [35]

Answer:

A. PO43-

Explanation:

in the given is buffer . so H2PO4- and HPO42- both are present with equal concentration . Na+ is spectator ion it is also present in the concentration higher than the given species above .

but PO4-3 is not present . so it is lowest concentration

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3 years ago

Compute the values. Express these answers to the hundredths place (i.e., two digits after the decimal point). log ( 2.1 ) = ln (

zepelin [54]

Answer:

x = 4.17

y = 1.86

Explanation:

0.62 = log(x)

x = 10^0.62 = 4.17 ( to the nearest hundredth)

0.62 = ln(y)

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3 years ago

Element in the noble ga family are considered stabled because their outer energy levels are

blsea [12.9K]

Answer: In octet state.

Explanation: For noble gases they are stable in state since their outer shell contain fully occupied having 8 electrons.

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3 years ago

_____________________ are trying to create better batteries that can store more energy, so that electric cars can travel further

lidiya [134]

Answer:

options?

Explanation:

i mean scientists fits so if any of the options have a scientist thats it

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2 years ago

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When 1000 C of charge is passed through CuSO4 solution, x g of copper is deposited. How much charge should be passed through the

Stels [109]

Number of charge = 5018 C

<h3>Further explanation</h3>

Given

1000 C of charge for x grams of copper

Required

Number of charge

Solution

Faraday's Law :

$\tt W=\dfrac{e.i.t}{96500}\\\\W=\dfrac{e.Q}{96500}$

For 1000 C, W = x grams

$\tt x=\dfrac{1000.e}{96500}=0.0104e$

For 5x grams :

$\tt 5x=\dfrac{e.Q}{96500}\\\\5\times 0.0104e=\dfrac{e.Q}{96500}\\\\Q=\dfrac{96500\times 5\times 0.0104e}{e}=5018~C$

6 0

3 years ago