All categories

4 years ago

50 points + brainliest to whoever is right

Chemistry

2 answers:

choli [55]4 years ago

4 0

4 cups is the answer

Sonbull [250]4 years ago

3 0

The answer is 4 cups

You might be interested in

Which does the earths energy budget give us an idea about ? Select all that apply.

finlep [7]

Answer:

first one: how much is reflected

Reason? google search :)

5 0

3 years ago

Read 2 more answers

How many moles are in 345g of Re

andre [41]

Answer:

The number of mole is 1.852moles

Explanation:

To calculate the number of mole, using the formula

n = m/Mm

n - number of mole

m - number of mass

Mm - number of molar mass

The molar mass of Re = 186.207

Then, n = 345g/ 186.207g/mol

n = 1.852mol

4 0

4 years ago

One gram of an acid, HA of unknown molecular mass is dissolved in water and 22.72 cm3 of 0.60 M sodium hydroxide solution added

FinnZ [79.3K]

Chemistry

mjhgghikk

jjjk

6 0

3 years ago

How many atoms of N are in 0.82 g of NaNO3? ( molar conversion)

VMariaS [17]

The number of atoms N = 5.8 x 10²¹

<h3>Further explanation</h3>

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12

1 mole = 6.02.10²³ particles

mass of N in 0.82 g of NaNO₃ (MW NaNO₃: 85 g/mol) :

$\tt mass~N=\dfrac{Ar~N}{MW~NaNO_3}\times mass~NaNO_3\\\\mass~N=\dfrac{14}{85}\times 0.82\\\\mass~N=0.135~g$

moles of N :

$\tt mol=\dfrac{mass}{Ar}\\\\mol=\dfrac{0.135}{14}=0.0096$

The number of atoms N :

$\tt N=n\times No\\\\N=0.0096\times 6.02\times 10^{23}\\\\N=5.8\times 10^{21}~atoms$

4 0

3 years ago

How is solar energy captured?<br><br> where is solar energy found?

lilavasa [31]

Explanation:

how is solar energy captured?
= Solar panels convert solar energy into usable electricity through a process known as the photovoltaic.
where is solar energy found?
= Rank Country Capacity (MW)1China175,0192Japan55,5003United States49,6924Germany45,930

3 0

3 years ago