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3 years ago

Determine the length of the object shown. 5.6 cm 5.60 cm 5.600 cm 6 cm

Chemistry

2 answers:

larisa [96]3 years ago

8 0

It's 5.6 cm . Hope this helps!

Nataly [62]3 years ago

5 0

Salutations!

Determine the length of the object shown below.

The length of the scale is 5.6 cm.

Hope I helped.

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Ierofanga [76]

15:15 which cancels to 1:1 so for each mole of co2 u get a mole of carbon monoxide

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3 years ago

Read 2 more answers

Convert 0.64 moles of table salt (NaCl) to grams

Nana76 [90]

Answer:

0.64 moles of table salt = 37.44 grams of table salt

Explanation:

mNaCl = 0.64 x (23 + 35.5) = 37.44 grams

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3 years ago

A solution is prepared by adding 91.3 g of sodium bromide [NaBr], to 115. g of water. Determine whether the solution is saturate

MrMuchimi

Answer: The given solution is unsaturated solution

Explanation:

We are given:

Solubility of NaBr = 9.19 m

Unsaturated solution is defined as the solution in which more solute particles can be dissolved in the solvent.

Saturated solution is defined as the solution in which no more solute particles can be dissolved in the solvent.

A precipitate is defined as the insoluble salt which is formed when two solutions are mixed containing soluble substances. The insoluble salt settles down at the bottom of the reaction mixture.

There are three conditions:

When $m_{\text{(calculated)}}$ ; the solution is unsaturated
When $m_{\text{(calculated)}}=m_{\text{(given)}}$ ; the solution is saturated
When $m_{\text{(calculated)}}>m_{\text{(given)}}$ ; precipitate will form

To calculate the molality of solution, we use the equation:

$\text{Molality}=\frac{m_{solute}\times 1000}{M_{solute}\times W_{solvent}\text{ (in grams)}}$

Where,

$m_{solute}$ = Given mass of solute (sodium bromide) = 91.3 g

$M_{solute}$ = Molar mass of solute (sodium bromide) = 103 g/mol

$W_{solvent}$ = Mass of solvent (water) = 115 g

Putting values in above equation, we get:

$\text{Calculated molality of NaBr}=\frac{91.3\times 1000}{103\times 115}\\\\\text{Calculated molality of NaBr}=7.71m$

As, the calculated solubility is less than the given solubility. So, the solution will be unsaturated.

Hence, the given solution is unsaturated solution

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3 years ago

Chemistry acids and bases

Ket [755]

Answer:

Imma just say acids have more acidity and bases have lower acidity...

4 0

3 years ago

Boyle's Law represents the relationship of volume as pressure changes. The constants of Boyle's Law are:

Aleksandr [31]

Answer:

d. Temperature and number of molecules of gas

Step-by-step explanation:

Boyle's Law states, "The volume of a fixed mass of a gas is inversely proportional to the pressure if the temperature remains constant."

Let's examine the words.

"… volume…is inversely proportional to the pressure …" This means that volume and pressure are the variables.

"… fixed mass of a gas …" means that the number of molecules is constant.

"… temperature remains constant" speaks for itself.

a, c, and e are wrong, because pressure is a variable.

b is wrong, because volume is a variable.

5 0

3 years ago