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You have 10g of Sodium Carbonate, how many moles do I have to 2dp?

Sodium Carbonate is Na 2 CO 3 The molecular formula mass is 2xNa + 1xC + 3xO 2x23 + 1x12 + 3x16 = 106 g/mol m = 10g Mr = 106 g/moln=m/Mrn = 10/106 = 0.09 mol
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Answered by Sophie B. • Chemistry tutor
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Describe the difference between TCP and UDP.

TCP (Transport Communication Protocol) allows for guaranteed communication between two machines. Connections are established with acknowledgements, and the receiver will also send acknowledgements when packe...
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Answered by Lewis W. • Computing tutor
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Which verbs take haben and which take sein in the past tense?

All verbs which indicate movement (or lack thereof) require sein. Everything else requires haben. For example, 'ich bin gegangen,' and 'ich bin geblieben' both refer to movement/lack of movement, which is wh...
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Answered by Chris D. • German tutor
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What is the subjunctive mood?

The subjunctive mood is used to indicate uncertainty, or possibility, in french. For example you would use the subjunctive mood when talking about your feelings, judgments, doubts and opinions, and when orde...
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Answered by Chris D. • French tutor
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What is active transport?

Active transport is the transport of substances against their concentration gradient with the use of energy. Molecules naturally flow down their concentration gradient, ie. from where they are more concentra...
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Answered by Chris D. • Biology tutor
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