Mole quantities of solutions:concentrations of homogeneous solutions in mol dm - 3 and g dm -3 (lowersixth science chemistry new))

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Test your knowledge on moles in solutions!

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Mole quantities of solutions:concentrations of homogeneous solutions in mol dm - 3 and g dm -3 (lowersixth science chemistry new))


Froggy Jumps Mole quantities of solutions:concentrations of homogeneous solutions in mol dm - 3 and g dm -3 (lowersixth science chemistry new))Online version Test your knowledge on moles in solutions! by YAKILI LMS 1 What is a mole in chemistry? a A unit to measure amount of substance b A measure of volume c A type of chemical reaction 2 How many particles are in one mole? a 6.022 x 10^23 b 1.0 x 10^24 c 3.14 x 10^23 3 What does molar mass refer to? a Mass of one mole of a substance b Volume of a substance c Number of molecules 4 Which unit is used to express concentration? a Mass b Density c Molarity (M) 5 How do you calculate moles from mass? a Divide mass by molar mass b Add mass and molar mass c Multiply mass by molar mass 6 What is the molar mass of water (H2O)? a 10 g/mol b 18 g/mol c 36 g/mol 7 What is the purpose of a solution's molarity? a To measure temperature b To measure concentration c To measure pressure 8 If you have 2 moles of NaCl, how many particles are there? a 1.2044 x 10^24 particles b 2.4048 x 10^23 particles c 6.022 x 10^23 particles 9 What is the main use of the mole concept? a To measure temperature b To count particles in chemical reactions c To determine pH 10 How many grams are in 0.5 moles of CO2? a 11 grams b 22 grams c 44 grams 11 ¿Qué indica una solución con alta concentración? a Menor cantidad de soluto b Mayor volumen de solvente c Mayor cantidad de soluto en el solvente 12 ¿Qué es una solución diluida? a No contiene soluto b Tiene mucha cantidad de soluto c Tiene poca cantidad de soluto 13 ¿Qué se usa para medir la concentración de una solución? a Peso b Molaridad c Volumen 14 ¿Qué significa 'diluir' una solución? a Disminuir la concentración de soluto b Calentar la solución c Aumentar la cantidad de soluto 15 ¿Qué elemento indica la cantidad de soluto en una solución? a La temperatura b La concentración c El volumen 16 ¿Qué sucede si se añade más solvente a una solución? a La concentración aumenta b Se evapora el soluto c La concentración disminuye 17 ¿Qué es una solución saturada? a No puede disolver más soluto b Puede disolver más soluto c No contiene soluto 18 ¿Qué unidad se usa comúnmente para expresar concentración? a Gramos b Litros c Molaridad (M) 19 ¿Qué efecto tiene aumentar la concentración de una solución? a Mayor cantidad de soluto por volumen b Menos soluto c Menos volumen 20 ¿Qué se obtiene al diluir una solución concentrada? a Una solución sin soluto b Una solución más concentrada c Una solución menos concentrada 21 What is molar concentration measured in? a Particles per milliliter b Moles per liter (mol/L) c Grams per liter 22 What does normality measure in a solution? a Equivalent grams of solute per liter b Mass of solute in grams c Moles of solute per kilogram 23 How is mass concentration expressed? a Mass of solute per unit volume (g/L) b Particles per milliliter c Moles per liter 24 If a solution has 2 mol of solute in 1 liter, what is its molar concentration? a 0.5 mol/L b 1 mol/L c 2 mol/L 25 Normality depends on what aspect of the solute? a Number of equivalents b Mass c Molecular weight 26 What is the formula to calculate molar concentration? a Mass / Volume b Mass / Moles c Moles of solute / Volume of solution (L) 27 Which unit is used for mass concentration? a Mol/L b Grams per liter (g/L) c Particles/mL 28 What does a higher molar concentration indicate? a Less solute b More solvent c More solute per liter of solution 29 Normality is especially useful in which type of reactions? a Redox reactions b Precipitation reactions c Acid-base reactions 30 To increase molar concentration, you should: a Add more solvent b Add more solute or reduce solution volume c Remove solute 31 ¿Qué unidad se usa para expresar molaridad? a mol/dm³ b mg/ml c g/l 32 ¿Qué significa gdm³ en concentraciones? a miligramos por mililitro b gramos por decímetro cúbico c gramos por litro 33 ¿Cuál es la unidad común para molaridad en química? a mol/l b g/dm³ c mol/dm³ 34 ¿Qué indica una concentración de 1 mol/dm³? a Un gramo en un dm³ b Un mol en un litro c Un mol de soluto en un decímetro cúbico de solución 35 ¿Qué unidad mide la concentración en gdm³? a mol por litro b gramos por decímetro cúbico c miligramos por litro 36 ¿Cómo se expresa la concentración en química? a En ppm b En porcentaje c En mol/dm³ o g/dm³ 37 ¿Qué representa la molaridad? a Cantidad de gramos de soluto b Cantidad de partículas en la solución c Cantidad de moles de soluto por volumen de solución 38 ¿Qué unidad es más utilizada para concentraciones en soluciones? a g/l b mol/dm³ c mg/ml 39 ¿Qué indica una concentración baja en mol/dm³? a Más moles de soluto b Menos moles de soluto en el volumen dado c Mayor cantidad de soluto 40 ¿Qué unidad es equivalente a gdm³? a gramos por litro b gramos por decímetro cúbico c miligramos por mililitro 41 What is a mole in chemistry? a A chemical element b A type of atom c A unit to measure amount of substance 42 What does a balanced chemical equation show? a Conservation of atoms on both sides b Reaction speed c Temperature change 43 How many atoms are in 1 mole of any element? a 3.14 atoms b 6.022 x 10^23 atoms c 1 x 10^23 atoms 44 What is the chemical formula for water? a H₂O b O₂ c CO₂ 45 What does the coefficient in a chemical equation indicate? a Number of molecules or atoms b Type of element c Mass of substance 46 Which element has the chemical symbol 'O'? a Oxygen b Gold c Osmium 47 What is the main purpose of a chemical equation? a To describe physical change b To measure temperature c To represent a chemical reaction 48 What is the molar mass of carbon (C)? a 12 g/mol b 6 g/mol c 24 g/mol 49 In chemical equations, what does the arrow (→) mean? a Dissolves in b Yields or produces c Reacts with 50 What is the main concept behind the mole? a Measuring volume b Determining temperature c Counting particles using a standard number

Mole quantities of solutions:concentrations of homogeneous solutions in mol dm - 3 and g dm -3 (lowersixth science chemistry new))

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Mole quantities of solutions:concentrations of homogeneous solutions in mol dm - 3 and g dm -3 (lowersixth science chemistry new))Online version

by YAKILI LMS

What is a mole in chemistry?

How many particles are in one mole?

What does molar mass refer to?

Which unit is used to express concentration?

How do you calculate moles from mass?

What is the molar mass of water (H2O)?

What is the purpose of a solution's molarity?

If you have 2 moles of NaCl, how many particles are there?

What is the main use of the mole concept?

How many grams are in 0.5 moles of CO2?

¿Qué indica una solución con alta concentración?

¿Qué es una solución diluida?

¿Qué se usa para medir la concentración de una solución?

¿Qué significa 'diluir' una solución?

¿Qué elemento indica la cantidad de soluto en una solución?

¿Qué sucede si se añade más solvente a una solución?

¿Qué es una solución saturada?

¿Qué unidad se usa comúnmente para expresar concentración?

¿Qué efecto tiene aumentar la concentración de una solución?

¿Qué se obtiene al diluir una solución concentrada?

What is molar concentration measured in?

What does normality measure in a solution?

How is mass concentration expressed?

If a solution has 2 mol of solute in 1 liter, what is its molar concentration?

Normality depends on what aspect of the solute?

What is the formula to calculate molar concentration?

Which unit is used for mass concentration?

What does a higher molar concentration indicate?

Normality is especially useful in which type of reactions?

To increase molar concentration, you should:

¿Qué unidad se usa para expresar molaridad?

¿Qué significa gdm³ en concentraciones?

¿Cuál es la unidad común para molaridad en química?

¿Qué indica una concentración de 1 mol/dm³?

¿Qué unidad mide la concentración en gdm³?

¿Cómo se expresa la concentración en química?

¿Qué representa la molaridad?

¿Qué unidad es más utilizada para concentraciones en soluciones?

¿Qué indica una concentración baja en mol/dm³?

¿Qué unidad es equivalente a gdm³?

What is a mole in chemistry?

What does a balanced chemical equation show?

How many atoms are in 1 mole of any element?

What is the chemical formula for water?

What does the coefficient in a chemical equation indicate?

Which element has the chemical symbol 'O'?

What is the main purpose of a chemical equation?

What is the molar mass of carbon (C)?

In chemical equations, what does the arrow (→) mean?

What is the main concept behind the mole?