Chemistry, 28.08.2019 10:30 marisolrojo2002

What mass in grams of sodium nitrate, nano3, is produced if 20.0g of sodium azide, nan3, in a dilute aqueous solution are reacted with excess silver nitrate, agno3, according to the following chemical equation?
nan3(aq) + agno3(aq) --> agn3(s) + nano3(aq)

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1) Write the balanced equation

NaN3(aq) + AgNO3(aq) --> AgN3(s) + NaNO3(aq)

2) State the relevant theoretical ratio for the products and reactants in which you have the focus.

1mol NaN3 / 1mol NaNO3 or mol NaNO3 / 1mol NaN3

3) Transform the mass data into moles using the molar masses.

- molar mass of NaN3 = 23 g/mol + 3*14g/mol = 65 g/mol

- # of moles, n = mass / molar-mass = 20.0g / 65.0 g/mol = 0.3077 mol

4) From the theoretical ratio, get the number of moles produced. In this case the ratio is 1:1, so the number of moles of NaNO3 is also 0.3077 mol

5) Convert to mass, by multiplying by the molar mass of NaNO3

- molar mass of NaNO3: 23g/mol + 14g/mol + 3*16g/mol = 85 g/mol

- mass of NaNO3 = 0.3077 mol * 85g/mol = 26.15 g

26.15 g

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is it a purebred? it looks more like a red nose, but it doesn't have the red could it be a staffordshire bull terrior? unsure if that's the right name for it sorry

Ineed to know if my dog is a red nose or a blue nose pitbull- asap!

Answer from: Quest

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

Write 15 uses of a mercury barometer along with its characterestics

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What mass in grams of sodium nitrate, nano3, is produced if 20.0g of sodium azide, nan3, in a dilute...

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