3rd Trimester - Quiz 1 - 9th - Chemistry (23 - 24)

Unit Conversions

100

Convert 155 yards (yd) to meters (m)

141.68 m

200

Double Points!!

How many Kilograms (kg) are the equivalent to 750 ounces (oz)

21 kg

300

Convert 260  liters (l) into gallons (gal)

68.69 gal

400

How many hours (h) are the equivalent to 15,000 seconds (s)

4.17 h

500

Convert 12 kilometers (km) to feet (ft)

39,372 ft

The Mole

100

Calculate the number of Be atoms in 0.95 mol of Be

5.72x10²³ atoms

200

Calculate the number of moles of Mg in 3.4x10²⁴ atoms of Mg

5.64 moles

300

Calculate the number of NO₂ molecules in 1.46 mol of NO₂

8.79x10²³ molecules

400

Double Points!!

Calculate the number of moles of CaBr₂ in 1.56x10²³ molecules of CaBr₂

0.26 moles

500

Calculate the number of molecules of Cr₂(CO₃)₃ in 4.9 mol of Cr₂(CO₃)₃

2.95x10²⁴ molecules 

Molar Mass

100

Triple Points!!

Determine the molar mass of FeCl₃

162.2 g/mol

200

Determine the molar mass of F₃N₇

155 g/mol

300

Determine the molar mass of CuSO₄

159.61 g/mol

400

Determine the molar mass of Al₂(CO₃)₃

233.99 g/mol

500

Determine the molar mass of Co(HSO₄)₂

253.07 g/mol

Calculations using Molar Mass 1

100

Calculate the mass in grams of 3.6 mol of Sn

427.35 g

200

Triple Points!!

Calculate the number of moles contained in 40 grams of As

0.53 mol

300

Calculate the mass in grams of 1.75 mol of Mg(NO₃)₂

259.52 g

400

Calculate the number of moles contained in 500 g of Na₂CO₃

4.72 mol

500

Calculate the number of moles of butane (C₄H₁₀) in 99 grams of butane

1.71 mol

Calculations using Molar Mass 2

100

Calculate the mass in grams of 1.75x10²⁴ atoms of Si

81.3 g

200

Calculate the number of atoms contained in 50 grams of Cu

4.74x10²³ atoms

300

Double Points!!

Calculate the mass in grams of 1.98x10²³ molecules of SrCO₃

48.54 g

400

Calculate the number of molecules contained in 150 g of Li₃PO₄

7.8x10²³ molecules

500

Calculate the mass in grams of 5.68x10²² molecules of Fe₂(SO₃)₂

12.81 g