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How do you make a buffer?

A buffer is a mix of an excess of weak acid and its salt. Buffers can be made in two ways- by mixing the weak acid with its salt or by partially neutralising the weak acid with base. 1- Making buffers by ...

Answered by Abigail J. • Chemistry tutor

2176 Views

Fahima buys 2 packets of bread rolls costing £1.50 for each packet 1 bottle of ketchup costing £1.60 3 packets of sausages Fahima pays with a £10 note. She gets 30p change. Fahima works out that one packet of sausages costs £2.30 Is Fahima right?

Let's denote the price of sausages as S as it's the only unknown.Let's use simple algebra to solve this.To find the total price of all of the items she purchased ( i.e. the value), we multiply price by th...

Answered by Maria C. • Maths tutor

11358 Views

Explain two advantages that firms may gain from a horizontal merger.

Firstly, they may be able to take advantage of the economies of scale. As a firm grows in size and output, it benefits from lower average costs of production. Some examples of economies o...

Answered by Maria C. • Economics tutor

3046 Views

Use the past tense to tell a childhood story.

Cuando era pequeña vivía en una casa pequeña en el campo ubicada a pocas millas fuera de Madrid. Jugaba en el jardín con mi hermana y mis primos durante todo el día y no tenía ningún preocupación. Mi madr...

Answered by Maria C. • Spanish tutor

1768 Views

Introduce yourself in Spanish

¡Hola! Me llamo Maria. Soy de Chipre pero actualmente estoy estudiando Economía en la universidad de Edimburgo. En mi tiempo libre me gusta escuchar a música y tomar fotos.

Answered by Maria C. • Spanish tutor

1710 Views