In a solution in which [H+]= 1.0 x 10^-5 M is it acidic base or neutral

A soil’s texture is demanded by

Drupady [299]

It's determined by the sans,clay and silt.

3 0

3 years ago

Rhea has a balloon that contains 0.5 mole of helium. how many particles of helium are in the balloon?

horrorfan [7]

Answer:

$\boxed{3 \times 10^{23}}$

Explanation:

1 mol of helium contains 6.022 × 10²³ atoms

$\text{Atoms of He} =\text{0.5 mol He} \times \dfrac{ 6.022 \times 10^{23} \text{ atoms He}}{\text{1 mol He}}= 3 \times 10^{23} \text{ atoms He}$

The balloon contains $\boxed{3 \times 10^{23} \text{ atoms of He}}$ .

7 0

3 years ago

Consider the following balanced equation for the following reaction:

malfutka [58]

Answer: The amount of carbon dioxide produced in the reaction is 47.48 grams

Explanation:

For the given chemical equation:

$15O_2(g)+2C_6H_5COOH(aq.)\rightarrow 14CO_2(g)+6H_2O(l)$

To calculate the actual yield of carbon dioxide, we use the equation:

$\%\text{ yield}=\frac{\text{Actual yield}}{\text{Theoretical yield}}\times 100$

Percentage yield of carbon dioxide = 83 %

Theoretical yield of carbon dioxide = 1.30 moles

Putting values in above equation, we get:

$83=\frac{\text{Actual yield of carbon dioxide}}{1.30mol}\times 100\\\\\text{Actual yield of carbon dioxide}=\frac{1.30\times 83}{100}=1.079mol$

To calculate the mass for given number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Molar mass of carbon dioxide = 44 g/mol

Moles of carbon dioxide = 1.079 moles

Putting values in above equation, we get:

$1.079mol=\frac{\text{Mass of carbon dioxide}}{44g/mol}\\\\\text{Mass of carbon dioxide}=(1.079mol\times 44g/mol)=47.48g$

Hence, the amount of carbon dioxide produced in the reaction is 47.48 grams

6 0

3 years ago

Give four greas where the compressible nature of a gas is apelied .

Grace [21]

Answer:

Gases can be easily liquefied into very small volumes and stored in liquid form Eg in LPGA cylinders and used in homes.

Gases can be easily liquefied into very small volumes and stored in liquid form Eg in LPGA cylinders and used in homes.Balloons can be easily filled with air.

Gases can be easily liquefied into very small volumes and stored in liquid form Eg in LPGA cylinders and used in homes.Balloons can be easily filled with air.Compressed natural gas is used as fuel in vehicles.

Gases can be easily liquefied into very small volumes and stored in liquid form Eg in LPGA cylinders and used in homes.Balloons can be easily filled with air.Compressed natural gas is used as fuel in vehicles.A sponge has holes filled with air and this makes it easy to compress it.

8 0

3 years ago

Gas is squeezed into a small container is it compressibility or heat of combustion

tatiyna

Squeezing a gas into a small container is an example of compressibility (a physical change).

You measure the heat of combustion (a chemical change) when something burns.

7 0

3 years ago