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4 years ago

The Coriolis effect causes surface ocean currents to _____.

Chemistry

1 answer:

DedPeter [7]4 years ago

5 0

Answer:

bend and curve around the planet

100% correct

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You are on the Titanic and want to find something that will float because you didn't

damaskus [11]

Find volume of pillow

L=78cm

B=55cm

H=25cm

$\\ \bull\tt\longrightarrow V=LBH$

$\\ \bull\tt\longrightarrow V=25(78)(55)$

$\\ \bull\tt\longrightarrow V=107250cm^3$

$\\ \bull\tt\longrightarrow V=10.72m^3$

Now

Mass=5.5kg

$\\ \bull\tt\longrightarrow Density=\dfrac{Mass}{Volume}$

$\\ \bull\tt\longrightarrow Density=\dfrac{5.5}{10.72}$

$\\ \bull\tt\longrightarrow Density=0.5kg/m^3$

Density of water=1000kg/m^3

As it is less than density of water it will float on water

8 0

3 years ago

100.0 g H2SO4 =<br> ? mole H2SO4

diamong [38]

Answer:

sulfuric acid ..............

6 0

3 years ago

Suppose a sodium hydroxide solution was standardized against pure solid primary standard grade KHP. If 0.4798 g of KHP required

Readme [11.4K]

Answer:

The NaOH solution has a molarity of 0.052 M

Explanation:

<u>Step 1:</u> Data given

Mass of KHP = 0.4798 grams

Volume of NaOH= 45.22 mL = 0.04522 L

Molar mass of NaOH = 40 g/mol

Molar mass of KHP = 204.22 g/mol

<u>Step 2</u>: Calculate moles of KHP

Moles KHP = mass KHP / Molar mass KHP

Moles KHP = 0.4798 grams / 204.22 g/mol

Moles KHP = 0.00235 moles

<u>Step 3</u>: Calculate moles of NaOH

KHP here acts as a mono-acid so, the number of moles of NaOH = number of moles KHP = 0.00235 moles

<u>Step 4: </u>Calculate molarity of NaOH

Molarity NaOH = moles NaOH / volume NaOH

Molarity NaOH = 0.00235 moles / 0.04522 L

Molarity NaOH = 0.052 M

The NaOH solution has a molarity of 0.052 M

6 0

4 years ago

A solution is to be prepared with a sodium ion concentrationof

Lina20 [59]

Answer : The mass of sodium sulfate needed is 5.7085 grams.

Explanation : Given,

Concentration of sodium ion = 0.148 mol/L

Volume of solution = 2.29 L

Molar mass of sodium sulfate = 142 g/mole

First we have to determine the moles of sodium ion.

$\text{Concentration of sodium ion}=\frac{\text{Moles of sodium ion}}{\text{Volume of solution}}$

$0.184mol/L=\frac{\text{Moles of sodium ion}}{2.29L}$

$\text{Moles of sodium ion}=0.08035mole$

Now we have to calculate the moles of sodium sulfate.

The balanced chemical reaction will be,

$Na_2SO_4\rightarrow 2Na^++SO_4^{2-}$

As, 2 moles of sodium ion produced from 1 moles of $Na_2SO_4$

So, 0.08035 moles of sodium ion produced from $\frac{0.08035}{2}=0.040175$ moles of $Na_2SO_4$

Now we have to calculate the mass of sodium sulfate.

$\text{Mass of }Na_2SO_4=\text{Moles of }Na_2SO_4\times \text{Molar mass of }Na_2SO_4$

$\text{Mass of }Na_2SO_4=0.040175mole\times 142g/mole=5.7085g$

Therefore, the mass of sodium sulfate needed is 5.7085 grams.

3 0

4 years ago

NEEEEEEEEEEEEEEEEED HELP

lakkis [162]

<h3> <u>Answer</u></h3>

4. loses 2 electrons

<h3><u>EXPLANATION</u></h3>

Mg²+ has 10 electrons while Mg has 12 electrons.

7 0

3 years ago